Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2024-53220 First vendor Publication 2024-12-27
Vendor Cve Last vendor Modification 2024-12-27

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 account dirty data in __get_secs_required()

It will trigger system panic w/ testcase in [1]:

------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:2752! RIP: 0010:new_curseg+0xc81/0x2110 Call Trace:
f2fs_allocate_data_block+0x1c91/0x4540
do_write_page+0x163/0xdf0
f2fs_outplace_write_data+0x1aa/0x340
f2fs_do_write_data_page+0x797/0x2280
f2fs_write_single_data_page+0x16cd/0x2190
f2fs_write_cache_pages+0x994/0x1c80
f2fs_write_data_pages+0x9cc/0xea0
do_writepages+0x194/0x7a0
filemap_fdatawrite_wbc+0x12b/0x1a0
__filemap_fdatawrite_range+0xbb/0xf0
file_write_and_wait_range+0xa1/0x110
f2fs_do_sync_file+0x26f/0x1c50
f2fs_sync_file+0x12b/0x1d0
vfs_fsync_range+0xfa/0x230
do_fsync+0x3d/0x80
__x64_sys_fsync+0x37/0x50
x64_sys_call+0x1e88/0x20d0
do_syscall_64+0x4b/0x110
entry_SYSCALL_64_after_hwframe+0x76/0x7e

The root cause is if checkpoint_disabling and lfs_mode are both on, it will trigger OPU for all overwritten data, it may cost more free segment than expected, so f2fs must account those data correctly to calculate cosumed free segments later, and return ENOSPC earlier to avoid run out of free segment during block allocation.

[1] https://lore.kernel.org/fstests/20241015025106.3203676-1-chao@kernel.org/

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-53220

Sources (Detail)

https://git.kernel.org/stable/c/1acd73edbbfef2c3c5b43cba4006a7797eca7050
https://git.kernel.org/stable/c/6e58b2987960efcd917bc42da781cee256213618
https://git.kernel.org/stable/c/9313b85ddc120e2d2f0efaf86d0204d4c98d60b1
https://git.kernel.org/stable/c/e812871c068cc0f91ff9f5cee87d00df1c44aae4
https://git.kernel.org/stable/c/f1b8bfe8d2f2fdf905d37c174d5bc1cd2b6910c5
Source Url

Alert History

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0
Date Informations
2024-12-27 17:20:28
  • First insertion