{"id":"CVE-2022-49259","state":"PUBLISHED","title":"block: don't delete queue kobject before its children","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: don't delete queue kobject before its children\n\nkobjects aren't supposed to be deleted before their child kobjects are\ndeleted.  Apparently this is usually benign; however, a WARN will be\ntriggered if one of the child kobjects has a named attribute group:\n\n    sysfs group 'modes' not found for kobject 'crypto'\n    WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:278 sysfs_remove_group+0x72/0x80\n    ...\n    Call Trace:\n      sysfs_remove_groups+0x29/0x40 fs/sysfs/group.c:312\n      __kobject_del+0x20/0x80 lib/kobject.c:611\n      kobject_cleanup+0xa4/0x140 lib/kobject.c:696\n      kobject_release lib/kobject.c:736 [inline]\n      kref_put include/linux/kref.h:65 [inline]\n      kobject_put+0x53/0x70 lib/kobject.c:753\n      blk_crypto_sysfs_unregister+0x10/0x20 block/blk-crypto-sysfs.c:159\n      blk_unregister_queue+0xb0/0x110 block/blk-sysfs.c:962\n      del_gendisk+0x117/0x250 block/genhd.c:610\n\nFix this by moving the kobject_del() and the corresponding\nkobject_uevent() to the correct place.","publishedAt":"2025-02-26T01:56:12.046Z","updatedAt":"2026-05-11T18:56:15.321Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"b2001eb10f59363da930cdd6e086a2861986fa18","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"84fe3ca6e7910beb47ec13509d484f84fa2a41ad","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"0b5924a14d64487ebd51127b0358d06066ef5384","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"cf0cb8686e55d9c022944bc6ba9e19e832889e83","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"3d7e32c8da45957326f56937e0471c686d1a7711","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"0f69288253e9fc7c495047720e523b9f1aba5712","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-sysfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"4.19.238","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-sysfs.c"]}],"references":["https://git.kernel.org/stable/c/b2001eb10f59363da930cdd6e086a2861986fa18","https://git.kernel.org/stable/c/84fe3ca6e7910beb47ec13509d484f84fa2a41ad","https://git.kernel.org/stable/c/0b5924a14d64487ebd51127b0358d06066ef5384","https://git.kernel.org/stable/c/efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c","https://git.kernel.org/stable/c/cf0cb8686e55d9c022944bc6ba9e19e832889e83","https://git.kernel.org/stable/c/3d7e32c8da45957326f56937e0471c686d1a7711","https://git.kernel.org/stable/c/0f69288253e9fc7c495047720e523b9f1aba5712"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49259.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49259","state":"PUBLISHED","datePublished":"2025-02-26T01:56:12.046Z","dateUpdated":"2026-05-11T18:56:15.321Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:49:39.296Z"},"containers":{"cna":{"title":"block: don't delete queue kobject before its children","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: don't delete queue kobject before its children\n\nkobjects aren't supposed to be deleted before their child kobjects are\ndeleted.  Apparently this is usually benign; however, a WARN will be\ntriggered if one of the child kobjects has a named attribute group:\n\n    sysfs group 'modes' not found for kobject 'crypto'\n    WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:278 sysfs_remove_group+0x72/0x80\n    ...\n    Call Trace:\n      sysfs_remove_groups+0x29/0x40 fs/sysfs/group.c:312\n      __kobject_del+0x20/0x80 lib/kobject.c:611\n      kobject_cleanup+0xa4/0x140 lib/kobject.c:696\n      kobject_release lib/kobject.c:736 [inline]\n      kref_put include/linux/kref.h:65 [inline]\n      kobject_put+0x53/0x70 lib/kobject.c:753\n      blk_crypto_sysfs_unregister+0x10/0x20 block/blk-crypto-sysfs.c:159\n      blk_unregister_queue+0xb0/0x110 block/blk-sysfs.c:962\n      del_gendisk+0x117/0x250 block/genhd.c:610\n\nFix this by moving the kobject_del() and the corresponding\nkobject_uevent() to the correct place."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"b2001eb10f59363da930cdd6e086a2861986fa18","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"84fe3ca6e7910beb47ec13509d484f84fa2a41ad","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"0b5924a14d64487ebd51127b0358d06066ef5384","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"cf0cb8686e55d9c022944bc6ba9e19e832889e83","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"3d7e32c8da45957326f56937e0471c686d1a7711","versionType":"git"},{"version":"2c2086afc2b8b974fac32cb028e73dc27bfae442","status":"affected","lessThan":"0f69288253e9fc7c495047720e523b9f1aba5712","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-sysfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"4.19.238","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["block/blk-sysfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b2001eb10f59363da930cdd6e086a2861986fa18"},{"url":"https://git.kernel.org/stable/c/84fe3ca6e7910beb47ec13509d484f84fa2a41ad"},{"url":"https://git.kernel.org/stable/c/0b5924a14d64487ebd51127b0358d06066ef5384"},{"url":"https://git.kernel.org/stable/c/efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c"},{"url":"https://git.kernel.org/stable/c/cf0cb8686e55d9c022944bc6ba9e19e832889e83"},{"url":"https://git.kernel.org/stable/c/3d7e32c8da45957326f56937e0471c686d1a7711"},{"url":"https://git.kernel.org/stable/c/0f69288253e9fc7c495047720e523b9f1aba5712"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:56:15.321Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"4.19.238"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.4.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.10.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.15.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.17.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}