CVE-2026-97585
Linux: afs: Fix double-unmap of directory block
Linux LinuxOperating systemsCVSS
NoneNot scoredExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 9d6c703e24da3d39067e3c75f4ac2f6001c2472fLinuxCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
In the Linux kernel, the following vulnerability has been resolved:
afs: Fix double-unmap of directory block
Fix afs_edit_dir_remove() to use a cleanup function to unmap the block pointed to by afs_dir_iter::block if it's left pointing to something rather than manually kunmapping the blocks. Manually kunmapping without clearing iter.blocks can result in a double-kunmap if afs_dir_find_block() is called twice in a row (which would be the case if the block being modified is not first in the hash chain).
Text from CVE List
Affected versions 8
- Linuxaffected: a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e before 9d6c703e24da3d39067e3c75f4ac2f6001c2472fCVE List
- Linuxaffected: a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e before b60f51e4ad0f6f940899788ccc2762db1e3b69e6CVE List
- Linuxaffected: a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e before e3cfd3eb7d5be7787cc69530b423f788f14d084fCVE List
- Linuxaffected: 6.14CVE List
- Linuxunaffected: all versions before 6.14CVE List
- Linuxunaffected: 6.18.53 through 6.18.*CVE List
- Linuxunaffected: 7.2.7 through 7.2.*CVE List
- Linuxunaffected: 7.3CVE List