CVE-2024-42273

f2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid mkdir /mnt/test/comp f2fs_io setflags compression /mnt/test/comp dd if=/dev/zero of=/mnt/test/comp/testfile bs=16k count=1 truncate --size 13 /mnt/test/comp/testfile In the above scenario, we can get a BUG_ON. kernel BUG at fs/f2fs/segment.c:3589! Call Trace: do_write_page+0x78/0x390 [f2fs] f2fs_outplace_write_data+0x62/0xb0 [f2fs] f2fs_do_write_data_page+0x275/0x740 [f2fs] f2fs_write_single_data_page+0x1dc/0x8f0 [f2fs] f2fs_write_multi_pages+0x1e5/0xae0 [f2fs] f2fs_write_cache_pages+0xab1/0xc60 [f2fs] f2fs_write_data_pages+0x2d8/0x330 [f2fs] do_writepages+0xcf/0x270 __writeback_single_inode+0x44/0x350 writeback_sb_inodes+0x242/0x530 __writeback_inodes_wb+0x54/0xf0 wb_writeback+0x192/0x310 wb_workfn+0x30d/0x400 The reason is we gave CURSEG_ALL_DATA_ATGC to COMPR_ADDR where the page was set the gcing flag by set_cluster_dirty().

N/A

CVSS

Severity:

EPSS 0.09%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/5fd057160ab240dd816ae09b625395d54c297de1
https://git.kernel.org/stable/c/4239571c5db46a42f723b8fa8394039187c34439
https://git.kernel.org/stable/c/0cd106612396656d6f1ca17ef192c6759bb60791
https://git.kernel.org/stable/c/8cb1f4080dd91c6e6b01dbea013a3f42341cb6a1

Frequently Asked Questions

What is the severity of CVE-2024-42273?: CVE-2024-42273 has not yet been assigned a CVSS score.
How to fix CVE-2024-42273?: To fix CVE-2024-42273, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-42273 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-42273 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-42273?: CVE-2024-42273 affects Linux Linux, Linux Linux.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.