CVE-2022-49318
In the Linux kernel, the following vulnerability has been resolved: f2fs: remove WARN_ON in f2fs_is_valid_blkaddr Syzbot triggers two WARNs in f2fs_is_valid_blkaddr and __is_bitmap_valid.
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: remove WARN_ON in f2fs_is_valid_blkaddr Syzbot triggers two WARNs in f2fs_is_valid_blkaddr and __is_bitmap_valid. For example, in f2fs_is_valid_blkaddr, if type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ, it invokes WARN_ON if blkaddr is not in the right range. The call trace is as follows: f2fs_get_node_info+0x45f/0x1070 read_node_page+0x577/0x1190 __get_node_page.part.0+0x9e/0x10e0 __get_node_page f2fs_get_node_page+0x109/0x180 do_read_inode f2fs_iget+0x2a5/0x58b0 f2fs_fill_super+0x3b39/0x7ca0 Fix these two WARNs by replacing WARN_ON with dump_stack.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.26% probability · 17th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fdPatch
- https://git.kernel.org/stable/c/32bea51fe4c6e92c00403739f7547c89219bea88Patch
- https://git.kernel.org/stable/c/8c62c5e26345c34d199b4b8c8e69255ba3d0e751Patch
- https://git.kernel.org/stable/c/99c09b298e47ebbe345a6da9f268b32a6b0f4582Patch
- https://git.kernel.org/stable/c/cd6374af36cc548464d8c47a93fdba7303bb82a4Patch
- https://git.kernel.org/stable/c/dc2f78e2d4cc844a1458653d57ce1b54d4a29f21Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.