CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6310 vulnerabilities reference this CWE, most recent first.
GHSA-4P87-J93J-28J5
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 18:31In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios
A kernel crash was observed when replacing free hugetlb folios:
BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 28 UID: 0 PID: 29639 Comm: test_cma.sh Tainted 6.15.0-rc6-zp #41 PREEMPT(voluntary) RIP: 0010:alloc_and_dissolve_hugetlb_folio+0x1d/0x1f0 RSP: 0018:ffffc9000b30fa90 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000342cca RCX: ffffea0043000000 RDX: ffffc9000b30fb08 RSI: ffffea0043000000 RDI: 0000000000000000 RBP: ffffc9000b30fb20 R08: 0000000000001000 R09: 0000000000000000 R10: ffff88886f92eb00 R11: 0000000000000000 R12: ffffea0043000000 R13: 0000000000000000 R14: 00000000010c0200 R15: 0000000000000004 FS: 00007fcda5f14740(0000) GS:ffff8888ec1d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000391402000 CR4: 0000000000350ef0 Call Trace: replace_free_hugepage_folios+0xb6/0x100 alloc_contig_range_noprof+0x18a/0x590 ? srso_return_thunk+0x5/0x5f ? down_read+0x12/0xa0 ? srso_return_thunk+0x5/0x5f cma_range_alloc.constprop.0+0x131/0x290 __cma_alloc+0xcf/0x2c0 cma_alloc_write+0x43/0xb0 simple_attr_write_xsigned.constprop.0.isra.0+0xb2/0x110 debugfs_attr_write+0x46/0x70 full_proxy_write+0x62/0xa0 vfs_write+0xf8/0x420 ? srso_return_thunk+0x5/0x5f ? filp_flush+0x86/0xa0 ? srso_return_thunk+0x5/0x5f ? filp_close+0x1f/0x30 ? srso_return_thunk+0x5/0x5f ? do_dup2+0xaf/0x160 ? srso_return_thunk+0x5/0x5f ksys_write+0x65/0xe0 do_syscall_64+0x64/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e
There is a potential race between __update_and_free_hugetlb_folio() and replace_free_hugepage_folios():
CPU1 CPU2 __update_and_free_hugetlb_folio replace_free_hugepage_folios folio_test_hugetlb(folio) -- It's still hugetlb folio.
__folio_clear_hugetlb(folio) hugetlb_free_folio(folio) h = folio_hstate(folio) -- Here, h is NULL pointer
When the above race condition occurs, folio_hstate(folio) returns NULL, and subsequent access to this NULL pointer will cause the system to crash. To resolve this issue, execute folio_hstate(folio) under the protection of the hugetlb_lock lock, ensuring that folio_hstate(folio) does not return NULL.
{
"affected": [],
"aliases": [
"CVE-2025-38050"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T10:15:37Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios\n\nA kernel crash was observed when replacing free hugetlb folios:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000028\nPGD 0 P4D 0\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 28 UID: 0 PID: 29639 Comm: test_cma.sh Tainted 6.15.0-rc6-zp #41 PREEMPT(voluntary)\nRIP: 0010:alloc_and_dissolve_hugetlb_folio+0x1d/0x1f0\nRSP: 0018:ffffc9000b30fa90 EFLAGS: 00010286\nRAX: 0000000000000000 RBX: 0000000000342cca RCX: ffffea0043000000\nRDX: ffffc9000b30fb08 RSI: ffffea0043000000 RDI: 0000000000000000\nRBP: ffffc9000b30fb20 R08: 0000000000001000 R09: 0000000000000000\nR10: ffff88886f92eb00 R11: 0000000000000000 R12: ffffea0043000000\nR13: 0000000000000000 R14: 00000000010c0200 R15: 0000000000000004\nFS: 00007fcda5f14740(0000) GS:ffff8888ec1d8000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000028 CR3: 0000000391402000 CR4: 0000000000350ef0\nCall Trace:\n\u003cTASK\u003e\n replace_free_hugepage_folios+0xb6/0x100\n alloc_contig_range_noprof+0x18a/0x590\n ? srso_return_thunk+0x5/0x5f\n ? down_read+0x12/0xa0\n ? srso_return_thunk+0x5/0x5f\n cma_range_alloc.constprop.0+0x131/0x290\n __cma_alloc+0xcf/0x2c0\n cma_alloc_write+0x43/0xb0\n simple_attr_write_xsigned.constprop.0.isra.0+0xb2/0x110\n debugfs_attr_write+0x46/0x70\n full_proxy_write+0x62/0xa0\n vfs_write+0xf8/0x420\n ? srso_return_thunk+0x5/0x5f\n ? filp_flush+0x86/0xa0\n ? srso_return_thunk+0x5/0x5f\n ? filp_close+0x1f/0x30\n ? srso_return_thunk+0x5/0x5f\n ? do_dup2+0xaf/0x160\n ? srso_return_thunk+0x5/0x5f\n ksys_write+0x65/0xe0\n do_syscall_64+0x64/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThere is a potential race between __update_and_free_hugetlb_folio() and\nreplace_free_hugepage_folios():\n\nCPU1 CPU2\n__update_and_free_hugetlb_folio replace_free_hugepage_folios\n folio_test_hugetlb(folio)\n -- It\u0027s still hugetlb folio.\n\n __folio_clear_hugetlb(folio)\n hugetlb_free_folio(folio)\n h = folio_hstate(folio)\n -- Here, h is NULL pointer\n\nWhen the above race condition occurs, folio_hstate(folio) returns NULL,\nand subsequent access to this NULL pointer will cause the system to crash.\nTo resolve this issue, execute folio_hstate(folio) under the protection\nof the hugetlb_lock lock, ensuring that folio_hstate(folio) does not\nreturn NULL.",
"id": "GHSA-4p87-j93j-28j5",
"modified": "2025-11-14T18:31:22Z",
"published": "2025-06-18T12:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38050"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/113ed54ad276c352ee5ce109bdcf0df118a43bda"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e97283978a9848190d451f7038ac399613445f79"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PC3-99RP-R89J
Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2022-05-24 17:02radare2 through 4.0.0 lacks validation of the content variable in the function r_asm_pseudo_incbin at libr/asm/asm.c, ultimately leading to an arbitrary write. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted input.
{
"affected": [],
"aliases": [
"CVE-2019-19647"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-12-09T01:15:00Z",
"severity": "MODERATE"
},
"details": "radare2 through 4.0.0 lacks validation of the content variable in the function r_asm_pseudo_incbin at libr/asm/asm.c, ultimately leading to an arbitrary write. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted input.",
"id": "GHSA-4pc3-99rp-r89j",
"modified": "2022-05-24T17:02:55Z",
"published": "2022-05-24T17:02:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19647"
},
{
"type": "WEB",
"url": "https://github.com/radareorg/radare2/issues/15545"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRQXCOVFWZIIMAZIAAFAVQGZOS7LGHXP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YQTOWEDFXDTGTD6D4NHRB4FUURQSTTEN"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4PC5-FM55-FF6G
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31Null pointer dereference in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-49694"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:55Z",
"severity": "HIGH"
},
"details": "Null pointer dereference in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-4pc5-fm55-ff6g",
"modified": "2025-07-08T18:31:47Z",
"published": "2025-07-08T18:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49694"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49694"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PC8-MG94-P837
Vulnerability from github – Published: 2025-01-24 00:31 – Updated: 2025-01-28 18:31gpac 2.4 contains a SEGV at src/isomedia/drm_sample.c:1562:96 in isom_cenc_get_sai_by_saiz_saio in MP4Box.
{
"affected": [],
"aliases": [
"CVE-2024-50665"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-23T22:15:13Z",
"severity": "MODERATE"
},
"details": "gpac 2.4 contains a SEGV at src/isomedia/drm_sample.c:1562:96 in isom_cenc_get_sai_by_saiz_saio in MP4Box.",
"id": "GHSA-4pc8-mg94-p837",
"modified": "2025-01-28T18:31:25Z",
"published": "2025-01-24T00:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50665"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/2987"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PH3-7QQH-5H7G
Vulnerability from github – Published: 2024-03-11 21:31 – Updated: 2025-02-18 15:31In ss_SendCallBarringPwdRequiredIndMsg of ss_CallBarring.c, there is a possible null pointer deref due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2024-27229"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-11T19:15:48Z",
"severity": "HIGH"
},
"details": "In ss_SendCallBarringPwdRequiredIndMsg of ss_CallBarring.c, there is a possible null pointer deref due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-4ph3-7qqh-5h7g",
"modified": "2025-02-18T15:31:05Z",
"published": "2024-03-11T21:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27229"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2024-03-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PH6-V858-6WH9
Vulnerability from github – Published: 2022-05-13 01:11 – Updated: 2022-05-13 01:11huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing segfaults and an application crash during an unzip operation on a specially crafted ZIP file.
{
"affected": [],
"aliases": [
"CVE-2015-9261"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-26T19:29:00Z",
"severity": "MODERATE"
},
"details": "huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing segfaults and an application crash during an unzip operation on a specially crafted ZIP file.",
"id": "GHSA-4ph6-v858-6wh9",
"modified": "2022-05-13T01:11:42Z",
"published": "2022-05-13T01:11:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-9261"
},
{
"type": "WEB",
"url": "https://bugs.debian.org/803097"
},
{
"type": "WEB",
"url": "https://git.busybox.net/busybox/commit/?id=1de25a6e87e0e627aa34298105a3d17c60a1f44e"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00020.html"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Jun/14"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Sep/7"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3935-1"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2019/Jun/18"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2019/Sep/7"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2020/Aug/20"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Jun/36"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2015/10/25/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PHC-FQ33-39GX
Vulnerability from github – Published: 2023-10-16 00:30 – Updated: 2023-10-16 00:30NULL Pointer Dereference in GitHub repository seleniumhq/selenium prior to 4.14.0.
{
"affected": [],
"aliases": [
"CVE-2023-5590"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-15T23:15:44Z",
"severity": "HIGH"
},
"details": "NULL Pointer Dereference in GitHub repository seleniumhq/selenium prior to 4.14.0.",
"id": "GHSA-4phc-fq33-39gx",
"modified": "2023-10-16T00:30:27Z",
"published": "2023-10-16T00:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5590"
},
{
"type": "WEB",
"url": "https://github.com/seleniumhq/selenium/commit/023a0d52f106321838ab1c0997e76693f4dcbdf6"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/e268cd68-4f34-49bd-878b-82b96dcc0c99"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PJ9-RQ3X-VJW5
Vulnerability from github – Published: 2023-08-11 15:30 – Updated: 2025-11-03 21:30An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::convertToType1 function.
{
"affected": [],
"aliases": [
"CVE-2020-36024"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-11T14:15:11Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::convertToType1 function.",
"id": "GHSA-4pj9-rq3x-vjw5",
"modified": "2025-11-03T21:30:51Z",
"published": "2023-08-11T15:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36024"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/poppler/poppler/-/issues/1016"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00037.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PWX-M3XW-8XJ9
Vulnerability from github – Published: 2024-09-18 15:30 – Updated: 2024-09-20 21:31Unchecked Return Value to NULL Pointer Dereference vulnerability in Open Networking Foundation (ONF) libfluid (libfluid_msg module). This vulnerability is associated with program routine fluid_msg::of13::TablePropertiesList::unpack.
This issue affects libfluid: 0.1.0.
{
"affected": [],
"aliases": [
"CVE-2024-31175"
],
"database_specific": {
"cwe_ids": [
"CWE-476",
"CWE-690"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-18T14:15:14Z",
"severity": "MODERATE"
},
"details": "Unchecked Return Value to NULL Pointer Dereference vulnerability in Open Networking Foundation (ONF) libfluid (libfluid_msg module). This vulnerability is associated with program routine\u00a0fluid_msg::of13::TablePropertiesList::unpack.\n\nThis issue affects libfluid: 0.1.0.",
"id": "GHSA-4pwx-m3xw-8xj9",
"modified": "2024-09-20T21:31:38Z",
"published": "2024-09-18T15:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31175"
},
{
"type": "WEB",
"url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-31175"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-4Q4Q-JV3M-FQJR
Vulnerability from github – Published: 2025-05-08 09:30 – Updated: 2025-11-13 00:30In the Linux kernel, the following vulnerability has been resolved:
LoongArch: Return NULL from huge_pte_offset() for invalid PMD
LoongArch's huge_pte_offset() currently returns a pointer to a PMD slot even if the underlying entry points to invalid_pte_table (indicating no mapping). Callers like smaps_hugetlb_range() fetch this invalid entry value (the address of invalid_pte_table) via this pointer.
The generic is_swap_pte() check then incorrectly identifies this address as a swap entry on LoongArch, because it satisfies the "!pte_present() && !pte_none()" conditions. This misinterpretation, combined with a coincidental match by is_migration_entry() on the address bits, leads to kernel crashes in pfn_swap_entry_to_page().
Fix this at the architecture level by modifying huge_pte_offset() to check the PMD entry's content using pmd_none() before returning. If the entry is invalid (i.e., it points to invalid_pte_table), return NULL instead of the pointer to the slot.
{
"affected": [],
"aliases": [
"CVE-2025-37818"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-08T07:15:53Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Return NULL from huge_pte_offset() for invalid PMD\n\nLoongArch\u0027s huge_pte_offset() currently returns a pointer to a PMD slot\neven if the underlying entry points to invalid_pte_table (indicating no\nmapping). Callers like smaps_hugetlb_range() fetch this invalid entry\nvalue (the address of invalid_pte_table) via this pointer.\n\nThe generic is_swap_pte() check then incorrectly identifies this address\nas a swap entry on LoongArch, because it satisfies the \"!pte_present()\n\u0026\u0026 !pte_none()\" conditions. This misinterpretation, combined with a\ncoincidental match by is_migration_entry() on the address bits, leads to\nkernel crashes in pfn_swap_entry_to_page().\n\nFix this at the architecture level by modifying huge_pte_offset() to\ncheck the PMD entry\u0027s content using pmd_none() before returning. If the\nentry is invalid (i.e., it points to invalid_pte_table), return NULL\ninstead of the pointer to the slot.",
"id": "GHSA-4q4q-jv3m-fqjr",
"modified": "2025-11-13T00:30:16Z",
"published": "2025-05-08T09:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37818"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2ca9380b12711afe95b3589bd82b59623b3c96b3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/34256805720993e37adf6127371a1265aea8376a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/51424fd171cee6a33f01f7c66b8eb23ac42289d4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b49f085cd671addbda4802d6b9382513f7dd0f30"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bd51834d1cf65a2c801295d230c220aeebf87a73"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-56
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.