CVE-2022-49259
block: don't delete queue kobject before its children
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: block: don't delete queue kobject before its children kobjects aren't supposed to be deleted before their child kobjects are deleted. Apparently this is usually benign; however, a WARN will be triggered if one of the child kobjects has a named attribute group: sysfs group 'modes' not found for kobject 'crypto' WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:278 sysfs_remove_group+0x72/0x80 ... Call Trace: sysfs_remove_groups+0x29/0x40 fs/sysfs/group.c:312 __kobject_del+0x20/0x80 lib/kobject.c:611 kobject_cleanup+0xa4/0x140 lib/kobject.c:696 kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x53/0x70 lib/kobject.c:753 blk_crypto_sysfs_unregister+0x10/0x20 block/blk-crypto-sysfs.c:159 blk_unregister_queue+0xb0/0x110 block/blk-sysfs.c:962 del_gendisk+0x117/0x250 block/genhd.c:610 Fix this by moving the kobject_del() and the corresponding kobject_uevent() to the correct place.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < b2001eb10f59363da930cdd6e086a2861986fa18
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < 84fe3ca6e7910beb47ec13509d484f84fa2a41ad
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < 0b5924a14d64487ebd51127b0358d06066ef5384
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < cf0cb8686e55d9c022944bc6ba9e19e832889e83
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < 3d7e32c8da45957326f56937e0471c686d1a7711
- affected 2c2086afc2b8b974fac32cb028e73dc27bfae442 – < 0f69288253e9fc7c495047720e523b9f1aba5712
- affected 4.16
- unaffected < 4.16
- unaffected 4.19.238 – ≤ 4.19.*
- unaffected 5.4.189 – ≤ 5.4.*
- unaffected 5.10.110 – ≤ 5.10.*
- unaffected 5.15.33 – ≤ 5.15.*
- unaffected 5.16.19 – ≤ 5.16.*
- unaffected 5.17.2 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (7)
- https://git.kernel.org/stable/c/b2001eb10f59363da930cdd6e086a2861986fa18 (opens in a new tab)
- https://git.kernel.org/stable/c/84fe3ca6e7910beb47ec13509d484f84fa2a41ad (opens in a new tab)
- https://git.kernel.org/stable/c/0b5924a14d64487ebd51127b0358d06066ef5384 (opens in a new tab)
- https://git.kernel.org/stable/c/efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c (opens in a new tab)
- https://git.kernel.org/stable/c/cf0cb8686e55d9c022944bc6ba9e19e832889e83 (opens in a new tab)
- https://git.kernel.org/stable/c/3d7e32c8da45957326f56937e0471c686d1a7711 (opens in a new tab)
- https://git.kernel.org/stable/c/0f69288253e9fc7c495047720e523b9f1aba5712 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49259)Record last updated .