CVE-2024-53066 (GCVE-0-2024-53066)

Vulnerability from cvelistv5 – Published: 2024-11-19 17:22 – Updated: 2025-11-03 22:28
VLAI?
Title
nfs: Fix KMSAN warning in decode_getfattr_attrs()
Summary
In the Linux kernel, the following vulnerability has been resolved: nfs: Fix KMSAN warning in decode_getfattr_attrs() Fix the following KMSAN warning: CPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G B Tainted: [B]=BAD_PAGE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009) ===================================================== ===================================================== BUG: KMSAN: uninit-value in decode_getfattr_attrs+0x2d6d/0x2f90 decode_getfattr_attrs+0x2d6d/0x2f90 decode_getfattr_generic+0x806/0xb00 nfs4_xdr_dec_getattr+0x1de/0x240 rpcauth_unwrap_resp_decode+0xab/0x100 rpcauth_unwrap_resp+0x95/0xc0 call_decode+0x4ff/0xb50 __rpc_execute+0x57b/0x19d0 rpc_execute+0x368/0x5e0 rpc_run_task+0xcfe/0xee0 nfs4_proc_getattr+0x5b5/0x990 __nfs_revalidate_inode+0x477/0xd00 nfs_access_get_cached+0x1021/0x1cc0 nfs_do_access+0x9f/0xae0 nfs_permission+0x1e4/0x8c0 inode_permission+0x356/0x6c0 link_path_walk+0x958/0x1330 path_lookupat+0xce/0x6b0 filename_lookup+0x23e/0x770 vfs_statx+0xe7/0x970 vfs_fstatat+0x1f2/0x2c0 __se_sys_newfstatat+0x67/0x880 __x64_sys_newfstatat+0xbd/0x120 x64_sys_call+0x1826/0x3cf0 do_syscall_64+0xd0/0x1b0 entry_SYSCALL_64_after_hwframe+0x77/0x7f The KMSAN warning is triggered in decode_getfattr_attrs(), when calling decode_attr_mdsthreshold(). It appears that fattr->mdsthreshold is not initialized. Fix the issue by initializing fattr->mdsthreshold to NULL in nfs_fattr_init().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < 25ffd294fef81a7f3cd9528adf21560c04d98747 (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < bbfcd261cc068fe1cd02a4e871275074a0daa4e2 (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < 8fc5ea9231af9122d227c9c13f5e578fca48d2e3 (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < 9b453e8b108a5a93a6e348cf2ba4c9c138314a00 (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < f6b2b2b981af8e7d7c62d34143acefa4e1edfe8b (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < f749cb60a01f8391c760a1d6ecd938cadacf9549 (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < 9be0a21ae52b3b822d0eec4d14e909ab394f8a92 (git)
Affected: 88034c3d88c2c48b215f2cc5eb22e564aa817f9c , < dc270d7159699ad6d11decadfce9633f0f71c1db (git)
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    Linux Linux Affected: 3.5
Unaffected: 0 , < 3.5 (semver)
Unaffected: 4.19.324 , ≤ 4.19.* (semver)
Unaffected: 5.4.286 , ≤ 5.4.* (semver)
Unaffected: 5.10.230 , ≤ 5.10.* (semver)
Unaffected: 5.15.172 , ≤ 5.15.* (semver)
Unaffected: 6.1.117 , ≤ 6.1.* (semver)
Unaffected: 6.6.61 , ≤ 6.6.* (semver)
Unaffected: 6.11.8 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: Fix KMSAN warning in decode_getfattr_attrs()\n\nFix the following KMSAN warning:\n\nCPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G    B\nTainted: [B]=BAD_PAGE\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009)\n=====================================================\n=====================================================\nBUG: KMSAN: uninit-value in decode_getfattr_attrs+0x2d6d/0x2f90\n decode_getfattr_attrs+0x2d6d/0x2f90\n decode_getfattr_generic+0x806/0xb00\n nfs4_xdr_dec_getattr+0x1de/0x240\n rpcauth_unwrap_resp_decode+0xab/0x100\n rpcauth_unwrap_resp+0x95/0xc0\n call_decode+0x4ff/0xb50\n __rpc_execute+0x57b/0x19d0\n rpc_execute+0x368/0x5e0\n rpc_run_task+0xcfe/0xee0\n nfs4_proc_getattr+0x5b5/0x990\n __nfs_revalidate_inode+0x477/0xd00\n nfs_access_get_cached+0x1021/0x1cc0\n nfs_do_access+0x9f/0xae0\n nfs_permission+0x1e4/0x8c0\n inode_permission+0x356/0x6c0\n link_path_walk+0x958/0x1330\n path_lookupat+0xce/0x6b0\n filename_lookup+0x23e/0x770\n vfs_statx+0xe7/0x970\n vfs_fstatat+0x1f2/0x2c0\n __se_sys_newfstatat+0x67/0x880\n __x64_sys_newfstatat+0xbd/0x120\n x64_sys_call+0x1826/0x3cf0\n do_syscall_64+0xd0/0x1b0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nThe KMSAN warning is triggered in decode_getfattr_attrs(), when calling\ndecode_attr_mdsthreshold(). It appears that fattr-\u003emdsthreshold is not\ninitialized.\n\nFix the issue by initializing fattr-\u003emdsthreshold to NULL in\nnfs_fattr_init()."
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    "datePublished": "2024-11-19T17:22:35.389Z",
    "dateReserved": "2024-11-19T17:17:24.975Z",
    "dateUpdated": "2025-11-03T22:28:59.261Z",
    "state": "PUBLISHED"
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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



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