CVE-2022-49380
- Source
- https://cve.org/CVERecord?id=CVE-2022-49380
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49380.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49380
- Downstream
- Published
- 2025-02-26T02:11:18Z
- Modified
- 2026-08-17T03:36:19Z
- Summary
- f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()
As Yanming reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=215897
I have encountered a bug in F2FS file system in kernel v5.17.
The kernel should enable CONFIG_KASAN=y and CONFIG_KASAN_INLINE=y. You can reproduce the bug by running the following commands:
The kernel message is shown below:
kernel BUG at fs/f2fs/f2fs.h:2511! Call Trace: f2fs_remove_inode_page+0x2a2/0x830 f2fs_evict_inode+0x9b7/0x1510 evict+0x282/0x4e0 do_unlinkat+0x33a/0x540 __x64_sys_unlinkat+0x8e/0xd0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae
The root cause is: .total_valid_block_count or .total_valid_node_count could fuzzed to zero, then once dec_valid_node_count() was called, it will cause BUG_ON(), this patch fixes to print warning info and set SBI_NEED_FSCK into CP instead of panic.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49380.json" }- References
-
- https://git.kernel.org/stable/c/2766ddaf45b69252bb8fe526b5b6e56904a9ae7a
- https://git.kernel.org/stable/c/4d17e6fe9293d57081ffdc11e1cf313e25e8fd9e
- https://git.kernel.org/stable/c/89d9a48d0cd30429463ea4e37ca83be6773ed5eb
- https://git.kernel.org/stable/c/bce859358d3d5940aa858e40ceee70ee6e76130e
- https://git.kernel.org/stable/c/ccffa99ae6a1f44797b57444c6a80382a42928fe
- https://git.kernel.org/stable/c/f8b3c3fcf33105bc1ee7788e3b51b0a1ae42ae53
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49380.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49380
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5Fixedf8b3c3fcf33105bc1ee7788e3b51b0a1ae42ae53Fixed2766ddaf45b69252bb8fe526b5b6e56904a9ae7aFixedbce859358d3d5940aa858e40ceee70ee6e76130eFixed89d9a48d0cd30429463ea4e37ca83be6773ed5ebFixedccffa99ae6a1f44797b57444c6a80382a42928feFixed4d17e6fe9293d57081ffdc11e1cf313e25e8fd9e
Linux / Kernel
Package
- Name
- Kernel