cbcvebase.
CVE-2022-50864
published 2025-12-30

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…

PriorityP422high7.5
EPSS
0.18%
7.2th percentile
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: 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.

Affected

15 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.4-1 (bookworm)linux 6.1.4-1 (bookworm)
linuxlinux
linuxlinux>= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < ec93b5430ec0f60877a5388bb023d60624f9ab9fec93b5430ec0f60877a5388bb023d60624f9ab9f
linuxlinux>= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < 8b6ef451b5701b37d9a5905534595776a662edfc8b6ef451b5701b37d9a5905534595776a662edfc
linuxlinux>= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < ddb6615a168f97b91175e00eda4c644741cf531cddb6615a168f97b91175e00eda4c644741cf531c
linuxlinux>= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < a16731fa1b96226c75bbf18e73513b14fc318360a16731fa1b96226c75bbf18e73513b14fc318360
linuxlinux>= 8a9d2191e9f43bbcd256a9a6871bd73434c83f2f < ebeccaaef67a4895d2496ab8d9c2fb8d89201211ebeccaaef67a4895d2496ab8d9c2fb8d89201211
linuxlinux_kernel>= 0 < 5.10.178-15.10.178-1
linuxlinux_kernel>= 0 < 6.1.4-16.1.4-1
linuxlinux_kernel>= 0 < 6.1.4-16.1.4-1
linuxlinux_kernel>= 0 < 6.1.4-16.1.4-1
linuxlinux_kernel>= 2.6.30 < 5.10.1635.10.163
linuxlinux_kernel>= 5.11.0 < 5.15.865.15.86
linuxlinux_kernel>= 5.16.0 < 6.0.166.0.16
linuxlinux_kernel>= 6.1.0 < 6.1.26.1.2
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