What is CVE-2022-50864?

CVE-2022-50864 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 2.6.30 onward and patched in 5.10.163, 5.15.86, 6.0.16 and others. CVE-2022-50864 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50864?

CVE-2022-50864 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2022-50864?

Yes, CVE-2022-50864 has been patched. Fixed versions include 5.10.163, 5.15.86, 6.0.16 and others. If you are running Linux kernel 2.6.30 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50864 actively exploited?

CVE-2022-50864 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50864

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix shift-out-of-bounds due to too large exponent of block size If field s_log_block_size of superblock data is corrupted and too large, init_nilfs() and load_nilfs() still can trigger a shift-out-of-bounds warning followed by a kernel panic (if panic_on_warn is set): shift exponent 38973 is too large for 32-bit type 'int' Call Trace: <TASK> dump_stack_lvl+0xcd/0x134 ubsan_epilogue+0xb/0x50 __ubsan_handle_shift_out_of_bounds.cold.12+0x17b/0x1f5 init_nilfs.cold.11+0x18/0x1d [nilfs2] nilfs_mount+0x9b5/0x12b0 [nilfs2] ... This fixes the issue by adding and using a new helper function for getting block size with sanity check.

Package Linux Kernel

Published 2025-12-30

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 2.6.30 and later are affected. Fixed in 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from

≥ 2.6.30

Fixed in

✓ 5.10.163 5.10.x ✓ 5.15.86 5.15.x ✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50864 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/8b6ef451b5701b37d9a5905534595776a662edfc
Patch
Kernel patch commit
https://git.kernel.org/stable/c/a16731fa1b96226c75bbf18e73513b14fc318360
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ddb6615a168f97b91175e00eda4c644741cf531c
Patch

5 patch commits total View all on NVD

Frequently asked questions

What is CVE-2022-50864?

CVE-2022-50864 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.30 onward and has been patched in 5.10.163, 5.15.86, 6.0.16 and others. CVE-2022-50864 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2022-50864?

Yes — CVE-2022-50864 has been patched. Fixed versions include 5.10.163, 5.15.86, 6.0.16 and others. If you are running Linux kernel 2.6.30 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50864 actively exploited?

No — CVE-2022-50864 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.