Vulnerability-Lookup

CERTFR-2024-AVI-1101

Vulnerability from certfr_avis - Published: - Updated:

De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, un déni de service à distance et une atteinte à la confidentialité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Ubuntu	Ubuntu	Ubuntu 16.04 ESM
Ubuntu	Ubuntu	Ubuntu 24.04 LTS
Ubuntu	Ubuntu	Ubuntu 18.04 ESM
Ubuntu	Ubuntu	Ubuntu 20.04 LTS
Ubuntu	Ubuntu	Ubuntu 24.10
Ubuntu	Ubuntu	Ubuntu 14.04 ESM
Ubuntu	Ubuntu	Ubuntu 22.04 LTS

References

Title

Publication Time

CVE-2024-42240 (GCVE-0-2024-42240)

Vulnerability from cvelistv5 – Published: 2024-08-07 15:14 – Updated: 2026-05-23 15:52

Title

x86/bhi: Avoid warning in #DB handler due to BHI mitigation

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/bhi: Avoid warning in #DB handler due to BHI mitigation When BHI mitigation is enabled, if SYSENTER is invoked with the TF flag set then entry_SYSENTER_compat() uses CLEAR_BRANCH_HISTORY and calls the clear_bhb_loop() before the TF flag is cleared. This causes the #DB handler (exc_debug_kernel()) to issue a warning because single-step is used outside the entry_SYSENTER_compat() function. To address this issue, entry_SYSENTER_compat() should use CLEAR_BRANCH_HISTORY after making sure the TF flag is cleared. The problem can be reproduced with the following sequence: $ cat sysenter_step.c int main() { asm("pushf; pop %ax; bts $8,%ax; push %ax; popf; sysenter"); } $ gcc -o sysenter_step sysenter_step.c $ ./sysenter_step Segmentation fault (core dumped) The program is expected to crash, and the #DB handler will issue a warning. Kernel log: WARNING: CPU: 27 PID: 7000 at arch/x86/kernel/traps.c:1009 exc_debug_kernel+0xd2/0x160 ... RIP: 0010:exc_debug_kernel+0xd2/0x160 ... Call Trace: <#DB> ? show_regs+0x68/0x80 ? __warn+0x8c/0x140 ? exc_debug_kernel+0xd2/0x160 ? report_bug+0x175/0x1a0 ? handle_bug+0x44/0x90 ? exc_invalid_op+0x1c/0x70 ? asm_exc_invalid_op+0x1f/0x30 ? exc_debug_kernel+0xd2/0x160 exc_debug+0x43/0x50 asm_exc_debug+0x1e/0x40 RIP: 0010:clear_bhb_loop+0x0/0xb0 ... </#DB> <TASK> ? entry_SYSENTER_compat_after_hwframe+0x6e/0x8d </TASK> [ bp: Massage commit message. ]

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:13 UTC

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/db56615e96c439e13…
https://git.kernel.org/stable/c/a765679defe1dc1b8…
https://git.kernel.org/stable/c/dae3543db8f0cf8ac…
https://git.kernel.org/stable/c/08518d48e5b744620…
https://git.kernel.org/stable/c/ac8b270b61d48fcc6…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bd53ec80f21839cfd4d852a6088279d602d67e5b , < db56615e96c439e13783d7715330e824b4fd4b84 (git) Affected: 07dbb10f153f483e8249acebdffedf922e2ec2e1 , < a765679defe1dc1b8fa01928a6ad6361e72a1364 (git) Affected: eb36b0dce2138581bc6b5e39d0273cb4c96ded81 , < dae3543db8f0cf8ac1a198c3bb4b6e3c24d576cf (git) Affected: 7390db8aea0d64e9deb28b8e1ce716f5020c7ee5 , < 08518d48e5b744620524f0acd7c26c19bda7f513 (git) Affected: 7390db8aea0d64e9deb28b8e1ce716f5020c7ee5 , < ac8b270b61d48fcc61f052097777e3b5e11591e0 (git) Affected: 8f51637712e4da5be410a1666f8aee0d86eef898 (git) Affected: 5.15.154 , < 5.15.163 (semver) Affected: 6.1.85 , < 6.1.100 (semver) Affected: 6.6.26 , < 6.6.41 (semver) Affected: 6.8.5 , < 6.9 (semver)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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JSON

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{
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                "id": "CVE-2024-42240",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/bhi: Avoid warning in #DB handler due to BHI mitigation\n\nWhen BHI mitigation is enabled, if SYSENTER is invoked with the TF flag set\nthen entry_SYSENTER_compat() uses CLEAR_BRANCH_HISTORY and calls the\nclear_bhb_loop() before the TF flag is cleared. This causes the #DB handler\n(exc_debug_kernel()) to issue a warning because single-step is used outside the\nentry_SYSENTER_compat() function.\n\nTo address this issue, entry_SYSENTER_compat() should use CLEAR_BRANCH_HISTORY\nafter making sure the TF flag is cleared.\n\nThe problem can be reproduced with the following sequence:\n\n  $ cat sysenter_step.c\n  int main()\n  { asm(\"pushf; pop %ax; bts $8,%ax; push %ax; popf; sysenter\"); }\n\n  $ gcc -o sysenter_step sysenter_step.c\n\n  $ ./sysenter_step\n  Segmentation fault (core dumped)\n\nThe program is expected to crash, and the #DB handler will issue a warning.\n\nKernel log:\n\n  WARNING: CPU: 27 PID: 7000 at arch/x86/kernel/traps.c:1009 exc_debug_kernel+0xd2/0x160\n  ...\n  RIP: 0010:exc_debug_kernel+0xd2/0x160\n  ...\n  Call Trace:\n  \u003c#DB\u003e\n   ? show_regs+0x68/0x80\n   ? __warn+0x8c/0x140\n   ? exc_debug_kernel+0xd2/0x160\n   ? report_bug+0x175/0x1a0\n   ? handle_bug+0x44/0x90\n   ? exc_invalid_op+0x1c/0x70\n   ? asm_exc_invalid_op+0x1f/0x30\n   ? exc_debug_kernel+0xd2/0x160\n   exc_debug+0x43/0x50\n   asm_exc_debug+0x1e/0x40\n  RIP: 0010:clear_bhb_loop+0x0/0xb0\n  ...\n  \u003c/#DB\u003e\n  \u003cTASK\u003e\n   ? entry_SYSENTER_compat_after_hwframe+0x6e/0x8d\n  \u003c/TASK\u003e\n\n  [ bp: Massage commit message. ]"
        }
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        {
          "url": "https://git.kernel.org/stable/c/ac8b270b61d48fcc61f052097777e3b5e11591e0"
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      ],
      "title": "x86/bhi: Avoid warning in #DB handler due to BHI mitigation",
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        "engine": "bippy-1.2.0"
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}

CVE-2024-43882 (GCVE-0-2024-43882)

Vulnerability from cvelistv5 – Published: 2024-08-21 00:10 – Updated: 2026-08-05 11:36

Title

exec: Fix ToCToU between perm check and set-uid/gid usage

Summary

In the Linux kernel, the following vulnerability has been resolved: exec: Fix ToCToU between perm check and set-uid/gid usage When opening a file for exec via do_filp_open(), permission checking is done against the file's metadata at that moment, and on success, a file pointer is passed back. Much later in the execve() code path, the file metadata (specifically mode, uid, and gid) is used to determine if/how to set the uid and gid. However, those values may have changed since the permissions check, meaning the execution may gain unintended privileges. For example, if a file could change permissions from executable and not set-id: ---------x 1 root root 16048 Aug 7 13:16 target to set-id and non-executable: ---S------ 1 root root 16048 Aug 7 13:16 target it is possible to gain root privileges when execution should have been disallowed. While this race condition is rare in real-world scenarios, it has been observed (and proven exploitable) when package managers are updating the setuid bits of installed programs. Such files start with being world-executable but then are adjusted to be group-exec with a set-uid bit. For example, "chmod o-x,u+s target" makes "target" executable only by uid "root" and gid "cdrom", while also becoming setuid-root: -rwxr-xr-x 1 root cdrom 16048 Aug 7 13:16 target becomes: -rwsr-xr-- 1 root cdrom 16048 Aug 7 13:16 target But racing the chmod means users without group "cdrom" membership can get the permission to execute "target" just before the chmod, and when the chmod finishes, the exec reaches brpm_fill_uid(), and performs the setuid to root, violating the expressed authorization of "only cdrom group members can setuid to root". Re-check that we still have execute permissions in case the metadata has changed. It would be better to keep a copy from the perm-check time, but until we can do that refactoring, the least-bad option is to do a full inode_permission() call (under inode lock). It is understood that this is safe against dead-locks, but hardly optimal.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-10 04:55 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

Linux mitre root

References

13 references

URL	Tags
https://git.kernel.org/stable/c/d5c3c7e26275a2d83…
https://git.kernel.org/stable/c/368f6985d46657b8b…
https://git.kernel.org/stable/c/15469d46ba34559bf…
https://git.kernel.org/stable/c/9b424c5d4130d5631…
https://git.kernel.org/stable/c/f6cfc6bcfd5e1cf76…
https://git.kernel.org/stable/c/d2a2a4714d80d09b0…
https://git.kernel.org/stable/c/90dfbba89ad4f0d9c…
https://git.kernel.org/stable/c/f50733b45d865f91d…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2024…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

8 products

Vendor	Product	Version
Linux	Linux	Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < d5c3c7e26275a2d83b894d30f7582a42853a958f (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < 368f6985d46657b8b466a421dddcacd4051f7ada (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < 15469d46ba34559bfe7e3de6659115778c624759 (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < 9b424c5d4130d56312e2a3be17efb0928fec4d64 (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < f6cfc6bcfd5e1cf76115b6450516ea4c99897ae1 (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < d2a2a4714d80d09b0f8eb6438ab4224690b7121e (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < 90dfbba89ad4f0d9c9744ecbb1adac4aa2ff4f3e (git) Affected: 9167b0b9a0ab7907191523f5a0528e3b9c288e21 , < f50733b45d865f91db90919f8311e2127ce5a0cb (git)
Linux	Linux	Affected: 2.6.18 Unaffected: 0 , < 2.6.18 (semver) Unaffected: 4.19.320 , ≤ 4.19.* (semver) Unaffected: 5.4.282 , ≤ 5.4.* (semver) Unaffected: 5.10.224 , ≤ 5.10.* (semver) Unaffected: 5.15.165 , ≤ 5.15.* (semver) Unaffected: 6.1.106 , ≤ 6.1.* (semver) Unaffected: 6.6.47 , ≤ 6.6.* (semver) Unaffected: 6.10.6 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V3.1 (custom)
Siemens	RUGGEDCOM RST2428P	Unaffected: 0 , < * (custom)
Siemens	SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family	Unaffected: 0 , < * (custom)
Siemens	SCALANCE XCM-/XRM-/XCH-/XRH-300 family	Affected: 0 , < V3.1 (custom)
Siemens	SCALANCE XCM-/XRM-/XCH-/XRH-300 family	Unaffected: 0 , < * (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 8.4,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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            }
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                "id": "CVE-2024-43882",
                "options": [
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        "title": "CVE Program Container"
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            "product": "RUGGEDCOM RST2428P",
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CVE-2024-43892 (GCVE-0-2024-43892)

Vulnerability from cvelistv5 – Published: 2024-08-26 10:10 – Updated: 2026-08-05 11:37

Title

memcg: protect concurrent access to mem_cgroup_idr

Summary

In the Linux kernel, the following vulnerability has been resolved: memcg: protect concurrent access to mem_cgroup_idr Commit 73f576c04b94 ("mm: memcontrol: fix cgroup creation failure after many small jobs") decoupled the memcg IDs from the CSS ID space to fix the cgroup creation failures. It introduced IDR to maintain the memcg ID space. The IDR depends on external synchronization mechanisms for modifications. For the mem_cgroup_idr, the idr_alloc() and idr_replace() happen within css callback and thus are protected through cgroup_mutex from concurrent modifications. However idr_remove() for mem_cgroup_idr was not protected against concurrency and can be run concurrently for different memcgs when they hit their refcnt to zero. Fix that. We have been seeing list_lru based kernel crashes at a low frequency in our fleet for a long time. These crashes were in different part of list_lru code including list_lru_add(), list_lru_del() and reparenting code. Upon further inspection, it looked like for a given object (dentry and inode), the super_block's list_lru didn't have list_lru_one for the memcg of that object. The initial suspicions were either the object is not allocated through kmem_cache_alloc_lru() or somehow memcg_list_lru_alloc() failed to allocate list_lru_one() for a memcg but returned success. No evidence were found for these cases. Looking more deeply, we started seeing situations where valid memcg's id is not present in mem_cgroup_idr and in some cases multiple valid memcgs have same id and mem_cgroup_idr is pointing to one of them. So, the most reasonable explanation is that these situations can happen due to race between multiple idr_remove() calls or race between idr_alloc()/idr_replace() and idr_remove(). These races are causing multiple memcgs to acquire the same ID and then offlining of one of them would cleanup list_lrus on the system for all of them. Later access from other memcgs to the list_lru cause crashes due to missing list_lru_one.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:29 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/912736a0435ef40e6…
https://git.kernel.org/stable/c/e6cc9ff2ac0b5df9f…
https://git.kernel.org/stable/c/56fd70f4aa8b82199…
https://git.kernel.org/stable/c/37a060b64ae83b766…
https://git.kernel.org/stable/c/51c0b1bb7541f8893…
https://git.kernel.org/stable/c/9972605a238339b85…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 73f576c04b9410ed19660f74f97521bee6e1c546 , < 912736a0435ef40e6a4ae78197ccb5553cb80b05 (git) Affected: 73f576c04b9410ed19660f74f97521bee6e1c546 , < e6cc9ff2ac0b5df9f25eb790934c3104f6710278 (git) Affected: 73f576c04b9410ed19660f74f97521bee6e1c546 , < 56fd70f4aa8b82199dbe7e99366b1fd7a04d86fb (git) Affected: 73f576c04b9410ed19660f74f97521bee6e1c546 , < 37a060b64ae83b76600d187d76591ce488ab836b (git) Affected: 73f576c04b9410ed19660f74f97521bee6e1c546 , < 51c0b1bb7541f8893ec1accba59eb04361a70946 (git) Affected: 73f576c04b9410ed19660f74f97521bee6e1c546 , < 9972605a238339b85bd16b084eed5f18414d22db (git) Affected: 8627c7750a66a46d56d3564e1e881aa53764497c (git) Affected: db70cd18d3da727a3a59694de428a9e41c620de7 (git) Affected: 4.4.18 , < 4.5 (semver) Affected: 4.6.6 , < 4.7 (semver)
Linux	Linux	Affected: 4.7 Unaffected: 0 , < 4.7 (semver) Unaffected: 5.10.226 , ≤ 5.10.* (semver) Unaffected: 5.15.167 , ≤ 5.15.* (semver) Unaffected: 6.1.110 , ≤ 6.1.* (semver) Unaffected: 6.6.46 , ≤ 6.6.* (semver) Unaffected: 6.10.5 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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CVE-2024-44931 (GCVE-0-2024-44931)

Vulnerability from cvelistv5 – Published: 2024-08-26 10:11 – Updated: 2026-05-11 20:32

Title

gpio: prevent potential speculation leaks in gpio_device_get_desc()

Summary

In the Linux kernel, the following vulnerability has been resolved: gpio: prevent potential speculation leaks in gpio_device_get_desc() Userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do that by calling gpio_ioctl() with an offset out of range. Offset is copied from user and then used as an array index to get the gpio descriptor without sanitization in gpio_device_get_desc(). This change ensures that the offset is sanitized by using array_index_nospec() to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:28 UTC

Assigner

Linux mitre root

References

10 references

URL	Tags
https://git.kernel.org/stable/c/18504710442671b02…
https://git.kernel.org/stable/c/9ae2d8e75b741dbcb…
https://git.kernel.org/stable/c/9d682e89c44bd5819…
https://git.kernel.org/stable/c/c65ab97efcd438cb4…
https://git.kernel.org/stable/c/672c19165fc96dfad…
https://git.kernel.org/stable/c/1b955f786a4bcde8c…
https://git.kernel.org/stable/c/d776c0486b03a5c4a…
https://git.kernel.org/stable/c/d795848ecce24a75d…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < 18504710442671b02d00e6db9804a0ad26c5a479 (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < 9ae2d8e75b741dbcb0da374753f972410e83b5f3 (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < 9d682e89c44bd5819b01f3fbb45a8e3681a4b6d0 (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < c65ab97efcd438cb4e9f299400f2ea55251f3a67 (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < 672c19165fc96dfad531a5458e0b3cdab414aae4 (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < 1b955f786a4bcde8c0ccb2b7d519def2acb6f3cc (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < d776c0486b03a5c4afca65b8ff44573592bf93bb (git) Affected: 521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 , < d795848ecce24a75dfd46481aee066ae6fe39775 (git)
Linux	Linux	Affected: 4.6 Unaffected: 0 , < 4.6 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.112 , ≤ 6.1.* (semver) Unaffected: 6.6.46 , ≤ 6.6.* (semver) Unaffected: 6.10.5 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

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To clipboard

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CVE-2024-44940 (GCVE-0-2024-44940)

Vulnerability from cvelistv5 – Published: 2024-08-26 11:20 – Updated: 2026-08-05 11:37

Title

fou: remove warn in gue_gro_receive on unsupported protocol

Summary

In the Linux kernel, the following vulnerability has been resolved: fou: remove warn in gue_gro_receive on unsupported protocol Drop the WARN_ON_ONCE inn gue_gro_receive if the encapsulated type is not known or does not have a GRO handler. Such a packet is easily constructed. Syzbot generates them and sets off this warning. Remove the warning as it is expected and not actionable. The warning was previously reduced from WARN_ON to WARN_ON_ONCE in commit 270136613bf7 ("fou: Do WARN_ON_ONCE in gue_gro_receive for bad proto callbacks").

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:27 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a925a200299a6dfc7…
https://git.kernel.org/stable/c/b1453a5616c7bd8ac…
https://git.kernel.org/stable/c/5a2e37bc648a2503b…
https://git.kernel.org/stable/c/3db4395332e7050ef…
https://git.kernel.org/stable/c/440ab7f97261bc285…
https://git.kernel.org/stable/c/dd89a81d850fa9a65…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 37dd0247797b168ad1cc7f5dbec825a1ee66535b , < a925a200299a6dfc7c172f54da6f374edc930053 (git) Affected: 37dd0247797b168ad1cc7f5dbec825a1ee66535b , < b1453a5616c7bd8acd90633ceba4e59105ba3b51 (git) Affected: 37dd0247797b168ad1cc7f5dbec825a1ee66535b , < 5a2e37bc648a2503bf6d687aed27b9f4455d82eb (git) Affected: 37dd0247797b168ad1cc7f5dbec825a1ee66535b , < 3db4395332e7050ef9ddeb3052e6b5019f2a2a59 (git) Affected: 37dd0247797b168ad1cc7f5dbec825a1ee66535b , < 440ab7f97261bc28501636a13998e1b1946d2e79 (git) Affected: 37dd0247797b168ad1cc7f5dbec825a1ee66535b , < dd89a81d850fa9a65f67b4527c0e420d15bf836c (git)
Linux	Linux	Affected: 3.18 Unaffected: 0 , < 3.18 (semver) Unaffected: 5.10.234 , ≤ 5.10.* (semver) Unaffected: 5.15.174 , ≤ 5.15.* (semver) Unaffected: 6.1.107 , ≤ 6.1.* (semver) Unaffected: 6.6.47 , ≤ 6.6.* (semver) Unaffected: 6.10.6 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2024-44942 (GCVE-0-2024-44942)

Vulnerability from cvelistv5 – Published: 2024-08-26 11:20 – Updated: 2026-08-05 11:37

Title

f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC

Summary

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC syzbot reports a f2fs bug as below: ------------[ cut here ]------------ kernel BUG at fs/f2fs/inline.c:258! CPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0 RIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258 Call Trace: f2fs_write_single_data_page+0xb65/0x1d60 fs/f2fs/data.c:2834 f2fs_write_cache_pages fs/f2fs/data.c:3133 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3288 [inline] f2fs_write_data_pages+0x1efe/0x3a90 fs/f2fs/data.c:3315 do_writepages+0x35b/0x870 mm/page-writeback.c:2612 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1650 writeback_sb_inodes+0x905/0x1260 fs/fs-writeback.c:1941 wb_writeback+0x457/0xce0 fs/fs-writeback.c:2117 wb_do_writeback fs/fs-writeback.c:2264 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2304 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The root cause is: inline_data inode can be fuzzed, so that there may be valid blkaddr in its direct node, once f2fs triggers background GC to migrate the block, it will hit f2fs_bug_on() during dirty page writeback. Let's add sanity check on F2FS_INLINE_DATA flag in inode during GC, so that, it can forbid migrating inline_data inode's data block for fixing.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:27 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/ae00e6536a2dd54b6…
https://git.kernel.org/stable/c/26c07775fb5dc7435…
https://git.kernel.org/stable/c/fc01008c92f40015a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < ae00e6536a2dd54b64b39e9a39548870cf835745 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 26c07775fb5dc74351d1c3a2bc3cdf609b03e49f (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < fc01008c92f40015aeeced94750855a7111b6929 (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 6.6.47 , ≤ 6.6.* (semver) Unaffected: 6.10.6 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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              "lang": "en",
              "value": "AV:L - The poisoned inode reaches `gc_data_segment()` only after a local mount of an attacker-supplied f2fs image via loop device or removable media, and the triggering GC/writeback activity is entirely local kernel work. There is no network or adjacent-network path into the f2fs garbage collector.\nAC:L - Setting `F2FS_INLINE_DATA` in the inode while leaving a valid blkaddr in its direct node is a direct on-disk edit, and `is_alive()` plus the phase-4 checks then pass deterministically; background GC is enabled by default and the attacker can size the image so free sections run low, forcing migration on demand. No race, timing, or memory-layout condition outside the attacker\u0027s control is involved.\nPR:L - An unprivileged local user gets the crafted image mounted through loop devices or desktop/kiosk/Android automounters (udisks2, systemd, vold), and no capability check exists on the GC or writeback path that follows. This matches how the repo scores equivalent f2fs on-disk validation bugs (CVE-2024-47690, CVE-2024-56692).\nUI:N - In the automount/loop scenario the attacker performs the mount itself and the background GC kthread plus the flusher worker drive the crash asynchronously. No separate victim action is required.\nS:U - The BUG_ON panic, the stuck page/node-page locks, and the corrupted inode block-pointer array all remain inside the kernel\u0027s own security authority and the mounted filesystem. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - On the non-`CONFIG_F2FS_CHECK_FS` path the WARN is non-fatal and the inode\u0027s `i_addr[]` array is replaced with attacker-chosen 32-bit values that f2fs subsequently dereferences as block addresses in `f2fs_get_dnode_of_data()`/`f2fs_map_blocks()`, allowing in-range blocks belonging to other files on the volume to be read back. The persisted metadata corruption therefore yields cross-file content disclosure, not merely a crash.\nI:H - `memcpy_from_page(inline_data_addr(inode, dn.inode_page), page, 0, MAX_INLINE_DATA(inode))` stomps roughly the whole `i_addr[]` block-pointer array of the inode with the contents of an unrelated data block the attacker controls, and `set_page_dirty(dn.inode_page)` writes that back to disk. The result is attacker-controlled corruption of filesystem metadata that the kernel only flags with `SBI_NEED_FSCK` rather than rejecting.\nA:H - With `CONFIG_F2FS_CHECK_FS` the reported failure is an outright `kernel BUG at fs/f2fs/inline.c:258` inside the writeback kworker, which dies holding the data page lock and the locked inode node page so every subsequent access to that inode and the bdi flusher deadlocks; without it the `WARN_ON` is fatal under `panic_on_warn` and otherwise repeats on every GC pass while marking the filesystem as needing fsck."
            }
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CVE-2024-46695 (GCVE-0-2024-46695)

Vulnerability from cvelistv5 – Published: 2024-09-13 05:29 – Updated: 2026-08-05 11:37

Title

selinux,smack: don't bypass permissions check in inode_setsecctx hook

Summary

In the Linux kernel, the following vulnerability has been resolved: selinux,smack: don't bypass permissions check in inode_setsecctx hook Marek Gresko reports that the root user on an NFS client is able to change the security labels on files on an NFS filesystem that is exported with root squashing enabled. The end of the kerneldoc comment for __vfs_setxattr_noperm() states: * This function requires the caller to lock the inode's i_mutex before it * is executed. It also assumes that the caller will make the appropriate * permission checks. nfsd_setattr() does do permissions checking via fh_verify() and nfsd_permission(), but those don't do all the same permissions checks that are done by security_inode_setxattr() and its related LSM hooks do. Since nfsd_setattr() is the only consumer of security_inode_setsecctx(), simplest solution appears to be to replace the call to __vfs_setxattr_noperm() with a call to __vfs_setxattr_locked(). This fixes the above issue and has the added benefit of causing nfsd to recall conflicting delegations on a file when a client tries to change its security label.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-29 15:05 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/2dbc4b7bac60b02cc…
https://git.kernel.org/stable/c/fe0cd53791119f628…
https://git.kernel.org/stable/c/eebec98791d0137e4…
https://git.kernel.org/stable/c/459584258d47ec3cc…
https://git.kernel.org/stable/c/f71ec019257ba4f7a…
https://git.kernel.org/stable/c/76a0e79bc84f46699…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 18032ca062e621e15683cb61c066ef3dc5414a7b , < 2dbc4b7bac60b02cc6e70d05bf6a7dfd551f9dda (git) Affected: 18032ca062e621e15683cb61c066ef3dc5414a7b , < fe0cd53791119f6287b6532af8ce41576d664930 (git) Affected: 18032ca062e621e15683cb61c066ef3dc5414a7b , < eebec98791d0137e455cc006411bb92a54250924 (git) Affected: 18032ca062e621e15683cb61c066ef3dc5414a7b , < 459584258d47ec3cc6245a82e8a49c9d08eb8b57 (git) Affected: 18032ca062e621e15683cb61c066ef3dc5414a7b , < f71ec019257ba4f7ab198bd948c5902a207bad96 (git) Affected: 18032ca062e621e15683cb61c066ef3dc5414a7b , < 76a0e79bc84f466999fa501fce5bf7a07641b8a7 (git)
Linux	Linux	Affected: 3.11 Unaffected: 0 , < 3.11 (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.49 , ≤ 6.6.* (semver) Unaffected: 6.10.8 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2024-46724 (GCVE-0-2024-46724)

Vulnerability from cvelistv5 – Published: 2024-09-18 06:32 – Updated: 2026-05-11 20:35

Title

drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number Check the fb_channel_number range to avoid the array out-of-bounds read error

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-29 14:56 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/725b728cc0c8c5faf…
https://git.kernel.org/stable/c/45f7b02afc464c208…
https://git.kernel.org/stable/c/32915dc909ff50282…
https://git.kernel.org/stable/c/f9267972490f9fcff…
https://git.kernel.org/stable/c/db7a86676fd624768…
https://git.kernel.org/stable/c/d768394fa99467bcf…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 725b728cc0c8c5fafdfb51cb0937870d33a40fa4 (git) Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 45f7b02afc464c208e8f56bcbc672ef5c364c815 (git) Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 32915dc909ff502823babfe07d5416c5b6e8a8b1 (git) Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < f9267972490f9fcffe146e79828e97acc0da588c (git) Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < db7a86676fd624768a5d907faf34ad7bb4ff25f4 (git) Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < d768394fa99467bcf2703bde74ddc96eeb0b71fa (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 5.10.226 , ≤ 5.10.* (semver) Unaffected: 5.15.167 , ≤ 5.15.* (semver) Unaffected: 6.1.109 , ≤ 6.1.* (semver) Unaffected: 6.6.50 , ≤ 6.6.* (semver) Unaffected: 6.10.9 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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CVE-2024-46849 (GCVE-0-2024-46849)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:42 – Updated: 2026-05-11 20:37

Title

ASoC: meson: axg-card: fix 'use-after-free'

Summary

In the Linux kernel, the following vulnerability has been resolved: ASoC: meson: axg-card: fix 'use-after-free' Buffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()', so move 'pad' pointer initialization after this function when memory is already reallocated. Kasan bug report: ================================================================== BUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc Read of size 8 at addr ffff000000e8b260 by task modprobe/356 CPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel #1 Call trace: dump_backtrace+0x94/0xec show_stack+0x18/0x24 dump_stack_lvl+0x78/0x90 print_report+0xfc/0x5c0 kasan_report+0xb8/0xfc __asan_load8+0x9c/0xb8 axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card] meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils] platform_probe+0x8c/0xf4 really_probe+0x110/0x39c __driver_probe_device+0xb8/0x18c driver_probe_device+0x108/0x1d8 __driver_attach+0xd0/0x25c bus_for_each_dev+0xe0/0x154 driver_attach+0x34/0x44 bus_add_driver+0x134/0x294 driver_register+0xa8/0x1e8 __platform_driver_register+0x44/0x54 axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card] do_one_initcall+0xdc/0x25c do_init_module+0x10c/0x334 load_module+0x24c4/0x26cc init_module_from_file+0xd4/0x128 __arm64_sys_finit_module+0x1f4/0x41c invoke_syscall+0x60/0x188 el0_svc_common.constprop.0+0x78/0x13c do_el0_svc+0x30/0x40 el0_svc+0x38/0x78 el0t_64_sync_handler+0x100/0x12c el0t_64_sync+0x190/0x194

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-29 13:58 UTC

Assigner

Linux mitre root

References

9 references

URL	Tags
https://git.kernel.org/stable/c/a33145f494e6cb82f…
https://git.kernel.org/stable/c/5a2cc2bb81399e9eb…
https://git.kernel.org/stable/c/fb0530025d502cb79…
https://git.kernel.org/stable/c/e1a199ec31617242e…
https://git.kernel.org/stable/c/e43364f578cdc2f80…
https://git.kernel.org/stable/c/7d318166bf55e9029…
https://git.kernel.org/stable/c/4f9a71435953f9419…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < a33145f494e6cb82f3e018662cc7c4febf271f22 (git) Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < 5a2cc2bb81399e9ebc72560541137eb04d61dc3d (git) Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < fb0530025d502cb79d2b2801b14a9d5261833f1a (git) Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < e1a199ec31617242e1a0ea8f312341e682d0c037 (git) Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < e43364f578cdc2f8083abbc0cb743ea55e827c29 (git) Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < 7d318166bf55e9029d56997c3b134f4ac2ae2607 (git) Affected: 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b , < 4f9a71435953f941969a4f017e2357db62d85a86 (git)
Linux	Linux	Affected: 4.19 Unaffected: 0 , < 4.19 (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.111 , ≤ 6.1.* (semver) Unaffected: 6.6.52 , ≤ 6.6.* (semver) Unaffected: 6.10.11 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

Show details on NVD website

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CVE-2024-46852 (GCVE-0-2024-46852)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:42 – Updated: 2026-08-05 11:39

Title

dma-buf: heaps: Fix off-by-one in CMA heap fault handler

Summary

In the Linux kernel, the following vulnerability has been resolved: dma-buf: heaps: Fix off-by-one in CMA heap fault handler Until VM_DONTEXPAND was added in commit 1c1914d6e8c6 ("dma-buf: heaps: Don't track CMA dma-buf pages under RssFile") it was possible to obtain a mapping larger than the buffer size via mremap and bypass the overflow check in dma_buf_mmap_internal. When using such a mapping to attempt to fault past the end of the buffer, the CMA heap fault handler also checks the fault offset against the buffer size, but gets the boundary wrong by 1. Fix the boundary check so that we don't read off the end of the pages array and insert an arbitrary page in the mapping.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-14 00:00 UTC

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/79cce5e81d20fa9ad…
https://git.kernel.org/stable/c/84175dc5b2c932266…
https://git.kernel.org/stable/c/eb7fc8b65cea22f90…
https://git.kernel.org/stable/c/e79050882b857c376…
https://git.kernel.org/stable/c/ea5ff5d351b520524…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a5d2d29e24be8967ef78a1b1fb2292413e3b3df9 , < 79cce5e81d20fa9ad553be439d665ac3302d3c95 (git) Affected: a5d2d29e24be8967ef78a1b1fb2292413e3b3df9 , < 84175dc5b2c932266a50c04e5ce342c30f817a2f (git) Affected: a5d2d29e24be8967ef78a1b1fb2292413e3b3df9 , < eb7fc8b65cea22f9038c52398c8b22849e9620ea (git) Affected: a5d2d29e24be8967ef78a1b1fb2292413e3b3df9 , < e79050882b857c37634baedbdcf7c2047c24cbff (git) Affected: a5d2d29e24be8967ef78a1b1fb2292413e3b3df9 , < ea5ff5d351b520524019f7ff7f9ce418de2dad87 (git)
Linux	Linux	Affected: 5.11 Unaffected: 0 , < 5.11 (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.111 , ≤ 6.1.* (semver) Unaffected: 6.6.52 , ≤ 6.6.* (semver) Unaffected: 6.10.11 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-46852",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-14T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-15T03:55:23.131Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:19:37.416Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma-buf/heaps/cma_heap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "79cce5e81d20fa9ad553be439d665ac3302d3c95",
              "status": "affected",
              "version": "a5d2d29e24be8967ef78a1b1fb2292413e3b3df9",
              "versionType": "git"
            },
            {
              "lessThan": "84175dc5b2c932266a50c04e5ce342c30f817a2f",
              "status": "affected",
              "version": "a5d2d29e24be8967ef78a1b1fb2292413e3b3df9",
              "versionType": "git"
            },
            {
              "lessThan": "eb7fc8b65cea22f9038c52398c8b22849e9620ea",
              "status": "affected",
              "version": "a5d2d29e24be8967ef78a1b1fb2292413e3b3df9",
              "versionType": "git"
            },
            {
              "lessThan": "e79050882b857c37634baedbdcf7c2047c24cbff",
              "status": "affected",
              "version": "a5d2d29e24be8967ef78a1b1fb2292413e3b3df9",
              "versionType": "git"
            },
            {
              "lessThan": "ea5ff5d351b520524019f7ff7f9ce418de2dad87",
              "status": "affected",
              "version": "a5d2d29e24be8967ef78a1b1fb2292413e3b3df9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma-buf/heaps/cma_heap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.168",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.111",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.52",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.11",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-buf: heaps: Fix off-by-one in CMA heap fault handler\n\nUntil VM_DONTEXPAND was added in commit 1c1914d6e8c6 (\"dma-buf: heaps:\nDon\u0027t track CMA dma-buf pages under RssFile\") it was possible to obtain\na mapping larger than the buffer size via mremap and bypass the overflow\ncheck in dma_buf_mmap_internal. When using such a mapping to attempt to\nfault past the end of the buffer, the CMA heap fault handler also checks\nthe fault offset against the buffer size, but gets the boundary wrong by\n1. Fix the boundary check so that we don\u0027t read off the end of the pages\narray and insert an arbitrary page in the mapping."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Exploitation requires local access to the `/dev/dma_heap/\u003ccma-heap\u003e` character device, an ioctl to allocate the buffer, and mmap/mremap/page-fault activity from a local process. No network or physical component is involved.\nAC:L - The off-by-one is deterministic \u2014 allocate a buffer, mmap it at full size, grow it with mremap (unblocked before v6.8), then touch the page at offset `pagecount`. Buffer size is attacker-chosen, so the slab layout used to control the adjacent `struct page *` can be groomed reliably.\nPR:L - No capability check exists anywhere on the path (`dma_heap_open`/`dma_heap_ioctl_allocate`/`cma_heap_allocate`); only DAC permission on the heap device node is needed, which on the dominant deployment for CMA heaps (Android/embedded ARM) is granted to ordinary unprivileged app and media processes.\nUI:N - The attacking process performs every step itself \u2014 open, ioctl, mmap, mremap, memory access. No victim action or cooperation is required.\nS:U - The corruption and the resulting privilege gain are entirely within the kernel\u0027s own security authority; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - Beyond the 8-byte out-of-bounds slab read, the handler installs the forged `struct page` into the faulting process\u0027s page tables, giving userspace a direct read mapping of an arbitrary physical page \u2014 arbitrary kernel and cross-process memory disclosure.\nI:H - The VMA is `MAP_SHARED` with no `page_mkwrite`, so `finish_fault()` installs a writable PTE for the arbitrary page, yielding an arbitrary physical-memory write; `get_page()` additionally increments a refcount at an attacker-influenced address. Both are readily leveraged into control-flow hijack and root.\nA:H - Dereferencing an out-of-bounds `struct page *` and inserting a bogus PFN into a mapping causes oops/panic and refcount corruption of unrelated pages, and the attacker can repeat it at will."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:39:01.066Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/79cce5e81d20fa9ad553be439d665ac3302d3c95"
        },
        {
          "url": "https://git.kernel.org/stable/c/84175dc5b2c932266a50c04e5ce342c30f817a2f"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb7fc8b65cea22f9038c52398c8b22849e9620ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/e79050882b857c37634baedbdcf7c2047c24cbff"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea5ff5d351b520524019f7ff7f9ce418de2dad87"
        }
      ],
      "title": "dma-buf: heaps: Fix off-by-one in CMA heap fault handler",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46852",
    "datePublished": "2024-09-27T12:42:45.336Z",
    "dateReserved": "2024-09-11T15:12:18.290Z",
    "dateUpdated": "2026-08-05T11:39:01.066Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CERTFR-2024-AVI-1101

Solutions

CVE-2024-42240 (GCVE-0-2024-42240)

CVE-2024-43882 (GCVE-0-2024-43882)

CVE-2024-43892 (GCVE-0-2024-43892)

CVE-2024-44931 (GCVE-0-2024-44931)

CVE-2024-44940 (GCVE-0-2024-44940)

CVE-2024-44942 (GCVE-0-2024-44942)

CVE-2024-46695 (GCVE-0-2024-46695)

CVE-2024-46724 (GCVE-0-2024-46724)

CVE-2024-46849 (GCVE-0-2024-46849)

CVE-2024-46852 (GCVE-0-2024-46852)

Tags

Sightings

Nomenclature