{"id":"CVE-2022-49318","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: remove WARN_ON in f2fs_is_valid_blkaddr\n\nSyzbot triggers two WARNs in f2fs_is_valid_blkaddr and\n__is_bitmap_valid","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: remove WARN_ON in f2fs_is_valid_blkaddr\n\nSyzbot triggers two WARNs in f2fs_is_valid_blkaddr and\n__is_bitmap_valid. For example, in f2fs_is_valid_blkaddr,\nif type …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.4.198","linux_kernel >= 5.5, < 5.10.122","linux_kernel >= 5.11, < 5.15.47","linux_kernel >= 5.16, < 5.17.15","linux_kernel >= 5.18, < 5.18.4"],"patched":["linux_kernel 5.18.4"],"published":"2025-02-26","updated":"2026-08-15","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-49318","references":[{"url":"https://git.kernel.org/stable/c/0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/32bea51fe4c6e92c00403739f7547c89219bea88","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8c62c5e26345c34d199b4b8c8e69255ba3d0e751","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/99c09b298e47ebbe345a6da9f268b32a6b0f4582","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cd6374af36cc548464d8c47a93fdba7303bb82a4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dc2f78e2d4cc844a1458653d57ce1b54d4a29f21","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00262,"epssPercentile":0.18362,"ingestedAt":"2026-08-15T13:26:43.793Z","slug":"CVE-2022-49318","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: remove WARN_ON in f2fs_is_valid_blkaddr\n\nSyzbot triggers two WARNs in f2fs_is_valid_blkaddr and\n__is_bitmap_valid. For example, in f2fs_is_valid_blkaddr,\nif type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ,\nit invokes WARN_ON if blkaddr is not in the right range.\nThe call trace is as follows:\n\n f2fs_get_node_info+0x45f/0x1070\n read_node_page+0x577/0x1190\n __get_node_page.part.0+0x9e/0x10e0\n __get_node_page\n f2fs_get_node_page+0x109/0x180\n do_read_inode\n f2fs_iget+0x2a5/0x58b0\n f2fs_fill_super+0x3b39/0x7ca0\n\nFix these two WARNs by replacing WARN_ON with dump_stack.\n\n## Affected\n\n- `linux_kernel < 5.4.198`\n- `linux_kernel >= 5.5, < 5.10.122`\n- `linux_kernel >= 5.11, < 5.15.47`\n- `linux_kernel >= 5.16, < 5.17.15`\n- `linux_kernel >= 5.18, < 5.18.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.18.4`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}