CVE-2026-72223

Summary

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

nvdimm/btt: Free arena sub-allocations on discover_arenas() error path

Memory allocated by btt_freelist_init(), btt_rtt_init(), and btt_maplocks_init() is not freed on some discover_arenas() error paths. This leaks memory when arena discovery fails.

Add the missing kfree() calls to release the allocations before returning an error.

[ as: commit message and log edits ]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < 2d0364937550a7b3e2592629c2a68753ac020b28affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < eeb95774bc79268e2b78ebf01d8781560b5bd671affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < 7563f69caa9143a491d5f26e563255c734751545affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < 0b0d9404951aacc9717aa61e77af4a6e9e8f8249affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < 873ced7f345e99f7ee16f9ff226515580332ecc4affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < 30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < ba59b96d8d21dc8729fca44a022ca5919c1848c9affected
LinuxLinux5212e11fde4d40fa627668b4f2222d20db488f71 < 13fe4cd9ddd0aacb7777812328be525a11ea3feaaffected
LinuxLinux4.2affected
LinuxLinux0 < 4.2unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References