GSD-2024-26840
Vulnerability from gsd - Updated: 2024-02-20 06:02Details
In the Linux kernel, the following vulnerability has been resolved:
cachefiles: fix memory leak in cachefiles_add_cache()
The following memory leak was reported after unbinding /dev/cachefiles:
==================================================================
unreferenced object 0xffff9b674176e3c0 (size 192):
comm "cachefilesd2", pid 680, jiffies 4294881224
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc ea38a44b):
[<ffffffff8eb8a1a5>] kmem_cache_alloc+0x2d5/0x370
[<ffffffff8e917f86>] prepare_creds+0x26/0x2e0
[<ffffffffc002eeef>] cachefiles_determine_cache_security+0x1f/0x120
[<ffffffffc00243ec>] cachefiles_add_cache+0x13c/0x3a0
[<ffffffffc0025216>] cachefiles_daemon_write+0x146/0x1c0
[<ffffffff8ebc4a3b>] vfs_write+0xcb/0x520
[<ffffffff8ebc5069>] ksys_write+0x69/0xf0
[<ffffffff8f6d4662>] do_syscall_64+0x72/0x140
[<ffffffff8f8000aa>] entry_SYSCALL_64_after_hwframe+0x6e/0x76
==================================================================
Put the reference count of cache_cred in cachefiles_daemon_unbind() to
fix the problem. And also put cache_cred in cachefiles_add_cache() error
branch to avoid memory leaks.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2024-26840"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix memory leak in cachefiles_add_cache()\n\nThe following memory leak was reported after unbinding /dev/cachefiles:\n\n==================================================================\nunreferenced object 0xffff9b674176e3c0 (size 192):\n comm \"cachefilesd2\", pid 680, jiffies 4294881224\n hex dump (first 32 bytes):\n 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc ea38a44b):\n [\u003cffffffff8eb8a1a5\u003e] kmem_cache_alloc+0x2d5/0x370\n [\u003cffffffff8e917f86\u003e] prepare_creds+0x26/0x2e0\n [\u003cffffffffc002eeef\u003e] cachefiles_determine_cache_security+0x1f/0x120\n [\u003cffffffffc00243ec\u003e] cachefiles_add_cache+0x13c/0x3a0\n [\u003cffffffffc0025216\u003e] cachefiles_daemon_write+0x146/0x1c0\n [\u003cffffffff8ebc4a3b\u003e] vfs_write+0xcb/0x520\n [\u003cffffffff8ebc5069\u003e] ksys_write+0x69/0xf0\n [\u003cffffffff8f6d4662\u003e] do_syscall_64+0x72/0x140\n [\u003cffffffff8f8000aa\u003e] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n==================================================================\n\nPut the reference count of cache_cred in cachefiles_daemon_unbind() to\nfix the problem. And also put cache_cred in cachefiles_add_cache() error\nbranch to avoid memory leaks.",
"id": "GSD-2024-26840",
"modified": "2024-02-20T06:02:29.114317Z",
"schema_version": "1.4.0"
}
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"version": {
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"description": {
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"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix memory leak in cachefiles_add_cache()\n\nThe following memory leak was reported after unbinding /dev/cachefiles:\n\n==================================================================\nunreferenced object 0xffff9b674176e3c0 (size 192):\n comm \"cachefilesd2\", pid 680, jiffies 4294881224\n hex dump (first 32 bytes):\n 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc ea38a44b):\n [\u003cffffffff8eb8a1a5\u003e] kmem_cache_alloc+0x2d5/0x370\n [\u003cffffffff8e917f86\u003e] prepare_creds+0x26/0x2e0\n [\u003cffffffffc002eeef\u003e] cachefiles_determine_cache_security+0x1f/0x120\n [\u003cffffffffc00243ec\u003e] cachefiles_add_cache+0x13c/0x3a0\n [\u003cffffffffc0025216\u003e] cachefiles_daemon_write+0x146/0x1c0\n [\u003cffffffff8ebc4a3b\u003e] vfs_write+0xcb/0x520\n [\u003cffffffff8ebc5069\u003e] ksys_write+0x69/0xf0\n [\u003cffffffff8f6d4662\u003e] do_syscall_64+0x72/0x140\n [\u003cffffffff8f8000aa\u003e] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n==================================================================\n\nPut the reference count of cache_cred in cachefiles_daemon_unbind() to\nfix the problem. And also put cache_cred in cachefiles_add_cache() error\nbranch to avoid memory leaks."
}
]
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"url": "https://git.kernel.org/stable/c/8b218e2f0a27a9f09428b1847b4580640b9d1e58"
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix memory leak in cachefiles_add_cache()\n\nThe following memory leak was reported after unbinding /dev/cachefiles:\n\n==================================================================\nunreferenced object 0xffff9b674176e3c0 (size 192):\n comm \"cachefilesd2\", pid 680, jiffies 4294881224\n hex dump (first 32 bytes):\n 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc ea38a44b):\n [\u003cffffffff8eb8a1a5\u003e] kmem_cache_alloc+0x2d5/0x370\n [\u003cffffffff8e917f86\u003e] prepare_creds+0x26/0x2e0\n [\u003cffffffffc002eeef\u003e] cachefiles_determine_cache_security+0x1f/0x120\n [\u003cffffffffc00243ec\u003e] cachefiles_add_cache+0x13c/0x3a0\n [\u003cffffffffc0025216\u003e] cachefiles_daemon_write+0x146/0x1c0\n [\u003cffffffff8ebc4a3b\u003e] vfs_write+0xcb/0x520\n [\u003cffffffff8ebc5069\u003e] ksys_write+0x69/0xf0\n [\u003cffffffff8f6d4662\u003e] do_syscall_64+0x72/0x140\n [\u003cffffffff8f8000aa\u003e] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n==================================================================\n\nPut the reference count of cache_cred in cachefiles_daemon_unbind() to\nfix the problem. And also put cache_cred in cachefiles_add_cache() error\nbranch to avoid memory leaks."
}
],
"id": "CVE-2024-26840",
"lastModified": "2024-04-17T12:48:07.510",
"metrics": {},
"published": "2024-04-17T10:15:09.910",
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},
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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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.
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