https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-07T20:03:34.265213+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2022-50864 CVE-2022-50864 — nilfs2: fix shift-out-of-bounds due to too large exponent of block size 2026-10-07T20:03:34.280194+00:00

Affected: Linux

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.