MediumFix available
f2fs: remove WARN_ON in f2fs_is_valid_blkaddr
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.122, 5.15.47, 5.17.15, 5.18.4, 5.4.198
- CVEs
- CVE-2022-49318
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 21:37 UTC · Revision 1
Source evidence
f2fs: remove WARN_ON in f2fs_is_valid_blkaddr
core-osv · Original sourcePublished 26 Feb 2025, 02:10 UTC
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.
osv:CVE-2022-49318
Kernel
Fixed versions: 5.4.198, 5.10.122, 5.15.47, 5.17.15, 5.18.4
Complete source record
{
"id": "155355cc71110fecc63e58e4df7d1fc1536d3479fdfb38db1a463bc9cb70c604",
"url": "https://osv.dev/vulnerability/CVE-2022-49318",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "f2fs: remove WARN_ON in f2fs_is_valid_blkaddr",
"summary": "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.",
"evidence": "osv:CVE-2022-49318",
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"modified": "2026-10-28T02:30:40.144057576Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd",
"https://git.kernel.org/stable/c/32bea51fe4c6e92c00403739f7547c89219bea88",
"https://git.kernel.org/stable/c/8c62c5e26345c34d199b4b8c8e69255ba3d0e751",
"https://git.kernel.org/stable/c/99c09b298e47ebbe345a6da9f268b32a6b0f4582",
"https://git.kernel.org/stable/c/cd6374af36cc548464d8c47a93fdba7303bb82a4",
"https://git.kernel.org/stable/c/dc2f78e2d4cc844a1458653d57ce1b54d4a29f21",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49318.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-49318",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
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"value": "CVE-2022-49318",
"evidence": "/id"
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"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 507383,
"published_at": "2025-02-26T02:10:44.557+00:00"
}