{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74426","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.894Z","datePublished":"2026-08-15T05:59:28.427Z","dateUpdated":"2026-08-17T05:19:11.836Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T05:19:11.836Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: fix NULL pointer dereference in afs_get_tree()\n\nafs_alloc_sbi() uses kzalloc for memory allocation. And, if\nctx->dyn_root is not null, as->cell and as->volume are null.\nIn trace_afs_get_tree() they are dereferenced.\n\nKASAN error message:\n\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 2 PID: 18478 Comm: syz-executor.7 Not tainted 5.10.246-syzkaller #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1\n04/01/2014\nRIP: 0010:perf_trace_afs_get_tree+0x1d9/0x550\ninclude/trace/events/afs.h:1365\n\nCall Trace:\ntrace_afs_get_tree include/trace/events/afs.h:1365 [inline]\nafs_get_tree+0x922/0x1350 fs/afs/super.c:599\nvfs_get_tree+0x8e/0x300 fs/super.c:1572\ndo_new_mount fs/namespace.c:3011 [inline]\npath_mount+0x14a5/0x2220 fs/namespace.c:3341\ndo_mount fs/namespace.c:3354 [inline]\n__do_sys_mount fs/namespace.c:3562 [inline]\n__se_sys_mount fs/namespace.c:3539 [inline]\n__x64_sys_mount+0x283/0x300 fs/namespace.c:3539\n do_syscall_64+0x33/0x50 arch/x86/entry/common.c:46\nentry_SYSCALL_64_after_hwframe+0x67/0xd1\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/afs/super.c"],"versions":[{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"67fb48c4a0874953212321cd5d57fdb4900dbc31","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"d648cc2069eb081707c061849046d909f57c78b1","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"d5b17474feed3c30991f07affa2473adbad95055","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"867b3ea146a041023bfcd258e6db516b1bb28f19","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"ea19edf71721cd42f923e3c70f4ff995b422fe3b","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"23b3d457d8387bcb2a61063a9e520063ada9335f","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"70b2842734d831c908474779bb8a76daf55f782c","status":"affected","versionType":"git"},{"version":"80548b03991f58758a336424a90bf9f988e3b077","lessThan":"0b70716081c6462be9b2928ad736d0d527b09678","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/afs/super.c"],"versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","status":"unaffected","versionType":"semver"},{"version":"5.10.261","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"5.2","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/67fb48c4a0874953212321cd5d57fdb4900dbc31"},{"url":"https://git.kernel.org/stable/c/d648cc2069eb081707c061849046d909f57c78b1"},{"url":"https://git.kernel.org/stable/c/d5b17474feed3c30991f07affa2473adbad95055"},{"url":"https://git.kernel.org/stable/c/867b3ea146a041023bfcd258e6db516b1bb28f19"},{"url":"https://git.kernel.org/stable/c/ea19edf71721cd42f923e3c70f4ff995b422fe3b"},{"url":"https://git.kernel.org/stable/c/23b3d457d8387bcb2a61063a9e520063ada9335f"},{"url":"https://git.kernel.org/stable/c/70b2842734d831c908474779bb8a76daf55f782c"},{"url":"https://git.kernel.org/stable/c/0b70716081c6462be9b2928ad736d0d527b09678"}],"title":"afs: fix NULL pointer dereference in afs_get_tree()","x_generator":{"engine":"bippy-1.2.0"}}}}