github - ghsa-36wr-w868-hx2g

GHSA-36WR-W868-HX2G

Vulnerability from github – Published: 2024-07-29 15:30 – Updated: 2025-11-04 00:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: discard write access to the directory open

may_open() does not allow a directory to be opened with the write access. However, some writing flags set by client result in adding write access on server, making ksmbd incompatible with FUSE file system. Simply, let's discard the write access when opening a directory.

list_add corruption. next is NULL. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:26! pc : __list_add_valid+0x88/0xbc lr : __list_add_valid+0x88/0xbc Call trace: __list_add_valid+0x88/0xbc fuse_finish_open+0x11c/0x170 fuse_open_common+0x284/0x5e8 fuse_dir_open+0x14/0x24 do_dentry_open+0x2a4/0x4e0 dentry_open+0x50/0x80 smb2_open+0xbe4/0x15a4 handle_ksmbd_work+0x478/0x5ec process_one_work+0x1b4/0x448 worker_thread+0x25c/0x430 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-41030"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T15:15:11Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: discard write access to the directory open\n\nmay_open() does not allow a directory to be opened with the write access.\nHowever, some writing flags set by client result in adding write access\non server, making ksmbd incompatible with FUSE file system. Simply, let\u0027s\ndiscard the write access when opening a directory.\n\nlist_add corruption. next is NULL.\n------------[ cut here ]------------\nkernel BUG at lib/list_debug.c:26!\npc : __list_add_valid+0x88/0xbc\nlr : __list_add_valid+0x88/0xbc\nCall trace:\n__list_add_valid+0x88/0xbc\nfuse_finish_open+0x11c/0x170\nfuse_open_common+0x284/0x5e8\nfuse_dir_open+0x14/0x24\ndo_dentry_open+0x2a4/0x4e0\ndentry_open+0x50/0x80\nsmb2_open+0xbe4/0x15a4\nhandle_ksmbd_work+0x478/0x5ec\nprocess_one_work+0x1b4/0x448\nworker_thread+0x25c/0x430\nkthread+0x104/0x1d4\nret_from_fork+0x10/0x20",
  "id": "GHSA-36wr-w868-hx2g",
  "modified": "2025-11-04T00:30:59Z",
  "published": "2024-07-29T15:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41030"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/198498b2049c0f11f7670be6974570e02b0cc035"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66cf853e1c7a2407f15d9f7aaa3e47d61745e361"
    },
    {
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      "url": "https://git.kernel.org/stable/c/9e84b1ba5c98fb5c9f869c85db1d870354613baa"
    },
    {
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      "url": "https://git.kernel.org/stable/c/e2e33caa5dc2eae7bddf88b22ce11ec3d760e5cd"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-41030 (GCVE-0-2024-41030)

Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2025-11-03 21:59

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: discard write access to the directory open may_open() does not allow a directory to be opened with the write access. However, some writing flags set by client result in adding write access on server, making ksmbd incompatible with FUSE file system. Simply, let's discard the write access when opening a directory. list_add corruption. next is NULL. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:26! pc : __list_add_valid+0x88/0xbc lr : __list_add_valid+0x88/0xbc Call trace: __list_add_valid+0x88/0xbc fuse_finish_open+0x11c/0x170 fuse_open_common+0x284/0x5e8 fuse_dir_open+0x14/0x24 do_dentry_open+0x2a4/0x4e0 dentry_open+0x50/0x80 smb2_open+0xbe4/0x15a4 handle_ksmbd_work+0x478/0x5ec process_one_work+0x1b4/0x448 worker_thread+0x25c/0x430 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/66cf853e1c7a2407f…
	https://git.kernel.org/stable/c/9e84b1ba5c98fb5c9…
	https://git.kernel.org/stable/c/198498b2049c0f11f…
	https://git.kernel.org/stable/c/e2e33caa5dc2eae7b…

Impacted products

Vendor

Product

Version

Linux

Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 66cf853e1c7a2407f15d9f7aaa3e47d61745e361 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 9e84b1ba5c98fb5c9f869c85db1d870354613baa (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 198498b2049c0f11f7670be6974570e02b0cc035 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < e2e33caa5dc2eae7bddf88b22ce11ec3d760e5cd (git)

Linux

Affected: 5.15
Unaffected: 0 , < 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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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-36WR-W868-HX2G

CVE-2024-41030 (GCVE-0-2024-41030)

Tags

Sightings

Nomenclature