CVE-2024-26840
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
cachefiles: fix memory leak in cachefiles_add_cache()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | cb5466783793e66272624cf71925ae1d1ba32083 | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | 037d5a949b0455540ef9aab34c10ddf54b65d285 | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | 43eccc5823732ba6daab2511ed32dfc545a666d8 | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | 94965be37add0983672e48ecb33cdbda92b62579 | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | 8b218e2f0a27a9f09428b1847b4580640b9d1e58 | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | 38e921616320d159336b0ffadb09e9fb4945c7c3 | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | 9cac69912052a4def571fedf1cb9bb4ec590e25a | Unavailable | None listed |
| 9ae326a69004dea8af2dae4fde58de27db700a8d | affected | git | e21a2f17566cbd64926fb8f16323972f7a064444 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.30 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.30 | Unavailable | None listed |
| 4.19.309 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.271 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.212 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.151 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.80 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.19 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7.7 | unaffected | semver | Unavailable | 6.7.* | None listed |
| 6.8 | unaffected | original_commit_for_fix | Unavailable | * | None listed |