linux: In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix shift-out-of-bounds due to too large...
CVE-2022-50864 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50864, released December 30, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.4-1 | DEBIAN-CVE-2022-50864 | Dec 30, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.4-1 | DEBIAN-CVE-2022-50864 | Dec 30, 2025 |
| linux · Debian 14 | 6.1.4-1 | DEBIAN-CVE-2022-50864 | Dec 30, 2025 |
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