CVE-2026-53309

Summary

In the Linux kernel, the following vulnerability has been resolved:

ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison

The local-vs-remote region comparison loop uses '<=' instead of '<', causing it to read one entry past the valid range of qr_regions. The other loops in the same function correctly use '<'.

Fix the loop condition to use '<' for consistency and correctness.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < 760ab35040aca8399021fdb9ff1db1089feb7194affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < c60a2710b73838d250cda57344c049b89abc5d52affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < 2a0673836f019e7c032acbf48d022d5ccf02a845affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < 819d8ebad3200a53de99bd7e297bc428e41ced54affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < d5403ae28085761d58b555645bc7d5feadb10073affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < 1fb7f356547d9688822315cd2b205ff0bd5429b4affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < 426cd8eedac89b86148d4478990eeef16e8a2520affected
LinuxLinuxea2034416b54700e30371f2ad6517cbb94674083 < 01b61e8dda9b0fdb0d4cda43de25f4e390554d7baffected
LinuxLinux2.6.37affected
LinuxLinux0 < 2.6.37unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.141 <= 6.6.*unaffected
LinuxLinux6.12.91 <= 6.12.*unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References