# CVE-2022-50770: linux: In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2_mount_volume()... CVE-2022-50770 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50770, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2022-50770 - Priority: Routine - CVSS: n/a - EPSS: 0.0025 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Dec 24, 2025 ## Description In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2_mount_volume() There is a memory leak reported by kmemleak: unreferenced object 0xffff88810cc65e60 (size 32): comm "mount.ocfs2", pid 23753, jiffies 4302528942 (age 34735.105s) hex dump (first 32 bytes): 10 00 00 00 00 00 00 00 00 01 01 01 01 01 01 01 ................ 01 01 01 01 01 01 01 01 00 00 00 00 00 00 00 00 ................ backtrace: [] __kmalloc+0x4d/0x150 [] ocfs2_compute_replay_slots+0x121/0x330 [ocfs2] [] ocfs2_check_volume+0x485/0x900 [ocfs2] [] ocfs2_mount_volume.isra.0+0x1e9/0x650 [ocfs2] [] ocfs2_fill_super+0xe0b/0x1740 [ocfs2] [] mount_bdev+0x312/0x400 [] legacy_get_tree+0xed/0x1d0 [] vfs_get_tree+0x7d/0x230 [] path_mount+0xd62/0x1760 [] do_mount+0xca/0xe0 [] __x64_sys_mount+0x12c/0x1a0 [] do_syscall_64+0x35/0x80 [] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This call stack is related to two problems. Firstly, the ocfs2 super uses "replay_map" to trace online/offline slots, in order to recover offline slots during recovery and mount. But when ocfs2_truncate_log_init() returns an error in ocfs2_mount_volume(), the memory of "replay_map" will not be freed in error handling path. Secondly, the memory of "replay_map" will not be freed if d_make_root() returns an error in ocfs2_fill_super(). But the memory of "replay_map" will be freed normally when completing recovery and mount in ocfs2_complete_mount_recovery(). Fix the first problem by adding error handling path to free "replay_map" when ocfs2_truncate_log_init() fails. And fix the second problem by calling ocfs2_free_replay_slots(osb) in the error handling path "out_dismount". In addition, since ocfs2_free_replay_slots() is static, it is necessary to remove its static attribute and declare it in header file. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | linux Debian 12.15 (bookworm) | 6.1.4-1 | [DEBIAN-CVE-2022-50770](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50770.md) | Dec 24, 2025 | | Linux | linux Debian 13.5 (trixie) | 6.1.4-1 | [DEBIAN-CVE-2022-50770](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50770.md) | Dec 24, 2025 | | Linux | linux Debian 14 | 6.1.4-1 | [DEBIAN-CVE-2022-50770](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50770.md) | Dec 24, 2025 | --- Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.