Executive Summary



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Informations
Name CVE-2022-49364 First vendor Publication 2025-02-26
Vendor Cve Last vendor Modification 2025-02-26

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to clear dirty inode in f2fs_evict_inode()

As Yanming reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215904

The kernel message is shown below:

kernel BUG at fs/f2fs/inode.c:825! Call Trace:
evict+0x282/0x4e0
__dentry_kill+0x2b2/0x4d0
shrink_dentry_list+0x17c/0x4f0
shrink_dcache_parent+0x143/0x1e0
do_one_tree+0x9/0x30
shrink_dcache_for_umount+0x51/0x120
generic_shutdown_super+0x5c/0x3a0
kill_block_super+0x90/0xd0
kill_f2fs_super+0x225/0x310
deactivate_locked_super+0x78/0xc0
cleanup_mnt+0x2b7/0x480
task_work_run+0xc8/0x150
exit_to_user_mode_prepare+0x14a/0x150
syscall_exit_to_user_mode+0x1d/0x40
do_syscall_64+0x48/0x90

The root cause is: inode node and dnode node share the same nid, so during f2fs_evict_inode(), dnode node truncation will invalidate its NAT entry, so when truncating inode node, it fails due to invalid NAT entry, result in inode is still marked as dirty, fix this issue by clearing dirty for inode and setting SBI_NEED_FSCK flag in filesystem.

output from dump.f2fs: [print_node_info: 354] Node ID [0xf:15] is inode i_nid[0] [0x f : 15]

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49364

Sources (Detail)

https://git.kernel.org/stable/c/03c9373b15fa1c245ec99b2b5e7ba209eae4ef42
https://git.kernel.org/stable/c/54c116615c99e22aa08aa950757ed726e2f60821
https://git.kernel.org/stable/c/c469953917b319d415fd621b9e5d0ea5203565cd
https://git.kernel.org/stable/c/c9196d21359be8c7ee231029d13682273925fd00
https://git.kernel.org/stable/c/ccd58045beb997544b94558a9156be4742628491
https://git.kernel.org/stable/c/f2db71053dc0409fae785096ad19cce4c8a95af7
Source Url

Alert History

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0
Date Informations
2025-02-26 17:20:32
  • First insertion