{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-26840","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-19T14:20:24.182Z","datePublished":"2024-04-17T10:10:06.180Z","dateUpdated":"2025-05-04T08:57:42.799Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:57:42.799Z"},"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    [<ffffffff8eb8a1a5>] kmem_cache_alloc+0x2d5/0x370\n    [<ffffffff8e917f86>] prepare_creds+0x26/0x2e0\n    [<ffffffffc002eeef>] cachefiles_determine_cache_security+0x1f/0x120\n    [<ffffffffc00243ec>] cachefiles_add_cache+0x13c/0x3a0\n    [<ffffffffc0025216>] cachefiles_daemon_write+0x146/0x1c0\n    [<ffffffff8ebc4a3b>] vfs_write+0xcb/0x520\n    [<ffffffff8ebc5069>] ksys_write+0x69/0xf0\n    [<ffffffff8f6d4662>] do_syscall_64+0x72/0x140\n    [<ffffffff8f8000aa>] 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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/cachefiles/cache.c","fs/cachefiles/daemon.c"],"versions":[{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"cb5466783793e66272624cf71925ae1d1ba32083","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"037d5a949b0455540ef9aab34c10ddf54b65d285","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"43eccc5823732ba6daab2511ed32dfc545a666d8","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"94965be37add0983672e48ecb33cdbda92b62579","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"8b218e2f0a27a9f09428b1847b4580640b9d1e58","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"38e921616320d159336b0ffadb09e9fb4945c7c3","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"9cac69912052a4def571fedf1cb9bb4ec590e25a","status":"affected","versionType":"git"},{"version":"9ae326a69004dea8af2dae4fde58de27db700a8d","lessThan":"e21a2f17566cbd64926fb8f16323972f7a064444","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/cachefiles/cache.c","fs/cachefiles/daemon.c"],"versions":[{"version":"2.6.30","status":"affected"},{"version":"0","lessThan":"2.6.30","status":"unaffected","versionType":"semver"},{"version":"4.19.309","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.271","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.212","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.151","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.80","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.19","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.7","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8","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":"2.6.30","versionEndExcluding":"4.19.309"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.151"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.7.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/cb5466783793e66272624cf71925ae1d1ba32083"},{"url":"https://git.kernel.org/stable/c/037d5a949b0455540ef9aab34c10ddf54b65d285"},{"url":"https://git.kernel.org/stable/c/43eccc5823732ba6daab2511ed32dfc545a666d8"},{"url":"https://git.kernel.org/stable/c/94965be37add0983672e48ecb33cdbda92b62579"},{"url":"https://git.kernel.org/stable/c/8b218e2f0a27a9f09428b1847b4580640b9d1e58"},{"url":"https://git.kernel.org/stable/c/38e921616320d159336b0ffadb09e9fb4945c7c3"},{"url":"https://git.kernel.org/stable/c/9cac69912052a4def571fedf1cb9bb4ec590e25a"},{"url":"https://git.kernel.org/stable/c/e21a2f17566cbd64926fb8f16323972f7a064444"}],"title":"cachefiles: fix memory leak in cachefiles_add_cache()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-26840","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-28T19:58:24.475717Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:49:17.204Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T00:14:13.702Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/cb5466783793e66272624cf71925ae1d1ba32083","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/037d5a949b0455540ef9aab34c10ddf54b65d285","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/43eccc5823732ba6daab2511ed32dfc545a666d8","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/94965be37add0983672e48ecb33cdbda92b62579","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8b218e2f0a27a9f09428b1847b4580640b9d1e58","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/38e921616320d159336b0ffadb09e9fb4945c7c3","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9cac69912052a4def571fedf1cb9bb4ec590e25a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e21a2f17566cbd64926fb8f16323972f7a064444","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","tags":["x_transferred"]}]}]},"dataVersion":"5.1"}