CVE-2026-23232 PUBLISHED

Revert "f2fs: block cache/dio write during f2fs_enable_checkpoint()"

Assigner: Linux
Reserved: 13.01.2026 Published: 04.03.2026 Updated: 04.03.2026

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

Revert "f2fs: block cache/dio write during f2fs_enable_checkpoint()"

This reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a.

Original patch may cause below deadlock, revert it.

write remount - write_begin - lock_page --- lock A - prepare_write_begin - f2fs_map_lock - f2fs_enable_checkpoint - down_write(cp_enable_rwsem) --- lock B - sync_inode_sb - writepages - lock_page --- lock A - down_read(cp_enable_rwsem) --- lock A

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 196c81fdd438f7ac429d5639090a9816abb9760a to b6382273801bc7c778545dd8004c9a9d750b4f62 (excl.)
  • affected from 196c81fdd438f7ac429d5639090a9816abb9760a to 3996b70209f145bfcf2afc7d05dd92c27b233b48 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.19 is affected
  • unaffected from 0 to 6.19 (excl.)
  • unaffected from 6.19.3 to 6.19.* (incl.)
  • unaffected from 7.0-rc1 to * (incl.)

References