243 lines
14 KiB
JSON
243 lines
14 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2024-58094",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2025-03-06T15:52:09.188Z",
|
|
"datePublished": "2025-04-16T14:11:43.298Z",
|
|
"dateUpdated": "2026-09-02T12:49:14.404Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-09-02T12:49:14.404Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: add check read-only before truncation in jfs_truncate_nolock()\n\nAdded a check for \"read-only\" mode in the `jfs_truncate_nolock`\nfunction to avoid errors related to writing to a read-only\nfilesystem.\n\nCall stack:\n\nblock_write_begin() {\n jfs_write_failed() {\n jfs_truncate() {\n jfs_truncate_nolock() {\n txEnd() {\n ...\n log = JFS_SBI(tblk->sb)->log;\n // (log == NULL)\n\nIf the `isReadOnly(ip)` condition is triggered in\n`jfs_truncate_nolock`, the function execution will stop, and no\nfurther data modification will occur. Instead, the `xtTruncate`\nfunction will be called with the \"COMMIT_WMAP\" flag, preventing\nmodifications in \"read-only\" mode."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerability is triggered by a local write(2)/truncate on a file residing on a mounted JFS filesystem, reaching jfs_write_begin → jfs_write_failed → jfs_truncate_nolock. There is no network-facing consumer of this path.\nAC:L - With an fd held open across a forced remount-ro (mount -o remount,ro,force or SysRq emergency remount) the trigger is deterministic, and the remount,nointegrity path in jfs_reconfigure() tears down the log with no SB_RDONLY set and no writer hold-off, leaving a multi-second window an attacker can hammer with a write loop. No memory-layout or victim-state condition outside the attacker's influence is needed.\nPR:L - The memory-unsafe operation executes in the context of an ordinary unprivileged process's buffered write on a JFS file; the read-only/log-teardown transition is a routine system event (shutdown remount, emergency remount, integrity-flag remount, removable-media handling) rather than something the attacker must supply. Basic local user access with a writable fd on a JFS volume suffices.\nUI:N - No victim action is required — the attacker's own write(2) call drives the entire path through xtTruncate() and txEnd(0). The filesystem is already mounted in the targeted deployment scenario.\nS:U - The wild-pointer read/write, lock corruption and filesystem metadata damage all occur within the kernel's own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - txEnd(0) dereferences TxBlock[0].sb, which is uninitialized vmalloc memory holding stale kernel data, and then chases it a second time (JFS_SBI(tblk->sb)->log), while TXN_WAKEUP walks an uninitialized wait_queue_head's garbage list pointers. This uninitialized-memory-driven corruption is groomable and leverageable for kernel memory disclosure.\nI:H - Without the fix, xtTruncate() runs with COMMIT_PWMAP and mutates xtree metadata and the persistent block map of a filesystem that must not be modified — the fix exists precisely so that \"no further data modification will occur\". Additionally, `--log->active` performs a decrement write through a pointer derived from uninitialized memory, and TxAnchor.freetid is corrupted to 0 so later transactions reuse the uninitialized TxBlock[0].\nA:H - The immediate observed result is a kernel oops (\"BUG: unable to handle kernel paging request\"/null-ptr-deref) in txEnd(). It occurs while the global TXN_LOCK spinlock, the inode commit_mutex and IWRITE_LOCK are held, so the locks are never released and every subsequent JFS operation on the system deadlocks."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"fs/jfs/inode.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "b98506e61e1bb6764c6711198cfab826df8ca952",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "1fee021d6cf1d41b3f6e3fd028939be8f5d5c5db",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "b57a8983916fc2cf54fd8de3afc733c6b3d1c0e5",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "41da1715cd24e177678f93ee27f737b095fc838b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "77038187890ea82d237b05c8a9c4e08a38b1efcb",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "f605bc3e162f5c6faa9bd3602ce496053d06a4bb",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
|
|
"lessThan": "b5799dd77054c1ec49b0088b006c9908e256843b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"fs/jfs/inode.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "2.6.12",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "2.6.12",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.269",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.220",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.187",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.156",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.108",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.14.2",
|
|
"lessThanOrEqual": "6.14.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.15",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "5.10.269"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "5.15.220"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.1.187"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.6.156"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.12.108"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.14.2"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.12",
|
|
"versionEndExcluding": "6.15"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b98506e61e1bb6764c6711198cfab826df8ca952"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/1fee021d6cf1d41b3f6e3fd028939be8f5d5c5db"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b57a8983916fc2cf54fd8de3afc733c6b3d1c0e5"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/41da1715cd24e177678f93ee27f737b095fc838b"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/77038187890ea82d237b05c8a9c4e08a38b1efcb"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f605bc3e162f5c6faa9bd3602ce496053d06a4bb"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b5799dd77054c1ec49b0088b006c9908e256843b"
|
|
}
|
|
],
|
|
"title": "jfs: add check read-only before truncation in jfs_truncate_nolock()",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |