{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49688","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T02:21:30.442Z","datePublished":"2025-02-26T02:24:13.686Z","dateUpdated":"2025-05-04T12:45:07.501Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:45:07.501Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix dynamic root getattr\n\nThe recent patch to make afs_getattr consult the server didn't account\nfor the pseudo-inodes employed by the dynamic root-type afs superblock\nnot having a volume or a server to access, and thus an oops occurs if\nsuch a directory is stat'd.\n\nFix this by checking to see if the vnode->volume pointer actually points\nanywhere before following it in afs_getattr().\n\nThis can be tested by stat'ing a directory in /afs.  It may be\nsufficient just to do \"ls /afs\" and the oops looks something like:\n\n        BUG: kernel NULL pointer dereference, address: 0000000000000020\n        ...\n        RIP: 0010:afs_getattr+0x8b/0x14b\n        ...\n        Call Trace:\n         <TASK>\n         vfs_statx+0x79/0xf5\n         vfs_fstatat+0x49/0x62"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/afs/inode.c"],"versions":[{"version":"b76ea7c06b24dcf97ea3379b6957d5b99c346ea0","lessThan":"65c24caf1b9f5b08397c6e805ec24ebc390c6e4d","status":"affected","versionType":"git"},{"version":"dba1941f5bc3de6b460685155b89ae1182824fc8","lessThan":"e3a232e5767051483ffad4cef7d0a89d292a192b","status":"affected","versionType":"git"},{"version":"61a4cc41e5c1b77d05a12798f8032050aa75f3c8","lessThan":"7b564e3254b7db5fbfbf11a824627a6c31b932b4","status":"affected","versionType":"git"},{"version":"94bf8bfb009fad247d02f12e4c443411c8445412","lessThan":"2b2bba96526f25f2eba74ecadb031de2e05a83ce","status":"affected","versionType":"git"},{"version":"2aeb8c86d49967552394d5e723f87454cb53f501","lessThan":"7844ceada44eca740d31beb3d97b8511b1ca0a9b","status":"affected","versionType":"git"},{"version":"2aeb8c86d49967552394d5e723f87454cb53f501","lessThan":"cb78d1b5efffe4cf97e16766329dd7358aed3deb","status":"affected","versionType":"git"},{"version":"9e655a8b874d7c56e02938ddb221b16e293793df","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/inode.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"4.19.250","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.202","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.127","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.51","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.18.8","lessThanOrEqual":"5.18.*","status":"unaffected","versionType":"semver"},{"version":"5.19","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":"4.19.245","versionEndExcluding":"4.19.250"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.196","versionEndExcluding":"5.4.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.118","versionEndExcluding":"5.10.127"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.42","versionEndExcluding":"5.15.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"5.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"5.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/65c24caf1b9f5b08397c6e805ec24ebc390c6e4d"},{"url":"https://git.kernel.org/stable/c/e3a232e5767051483ffad4cef7d0a89d292a192b"},{"url":"https://git.kernel.org/stable/c/7b564e3254b7db5fbfbf11a824627a6c31b932b4"},{"url":"https://git.kernel.org/stable/c/2b2bba96526f25f2eba74ecadb031de2e05a83ce"},{"url":"https://git.kernel.org/stable/c/7844ceada44eca740d31beb3d97b8511b1ca0a9b"},{"url":"https://git.kernel.org/stable/c/cb78d1b5efffe4cf97e16766329dd7358aed3deb"}],"title":"afs: Fix dynamic root getattr","x_generator":{"engine":"bippy-1.2.0"}}}}