CVE-2024-42273

f2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid

State: Published
Severity: 7.8 High
Published: Aug 17, 2024
Updated: Aug 5, 2026
Reserved: Jul 30, 2024

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().

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7c972c89457511007dfc933814c06786905e515c to before 5fd057160ab240dd816ae09b625395d54c297de1Affected 417b8a91f4e8831cadaf85c3f15c6991c1f54dde to before 4239571c5db46a42f723b8fa8394039187c34439Affected 4961acdd65c956e97c1a000c82d91a8c1cdbe44b to before 0cd106612396656d6f1ca17ef192c6759bb60791Affected 4961acdd65c956e97c1a000c82d91a8c1cdbe44b to before 8cb1f4080dd91c6e6b01dbea013a3f42341cb6a1Affected 7ea0f29d9fd84905051be020c0df7d557e286136Affected b8094c0f1aae329b1c60a275a780d6c2c9ff7aa3Affected 6.1.77 to before 6.1.104Affected 6.6.16 to before 6.6.45Affected 5.15.149 to before 5.16Affected 6.7.4 to before 6.8Affected
LinuxLinux	6.8Affected before 6.8Not affected 6.1.104 through 6.1.Not affected 6.6.45 through 6.6.Not affected 6.10.4 through 6.10.*Not affected 6.11 and laterNot affected

Product

Versions

LinuxLinux

7c972c89457511007dfc933814c06786905e515c to before 5fd057160ab240dd816ae09b625395d54c297de1Affected
417b8a91f4e8831cadaf85c3f15c6991c1f54dde to before 4239571c5db46a42f723b8fa8394039187c34439Affected
4961acdd65c956e97c1a000c82d91a8c1cdbe44b to before 0cd106612396656d6f1ca17ef192c6759bb60791Affected
4961acdd65c956e97c1a000c82d91a8c1cdbe44b to before 8cb1f4080dd91c6e6b01dbea013a3f42341cb6a1Affected
7ea0f29d9fd84905051be020c0df7d557e286136Affected
b8094c0f1aae329b1c60a275a780d6c2c9ff7aa3Affected
6.1.77 to before 6.1.104Affected
6.6.16 to before 6.6.45Affected
5.15.149 to before 5.16Affected
6.7.4 to before 6.8Affected

LinuxLinux

6.8Affected
before 6.8Not affected
6.1.104 through 6.1.*Not affected
6.6.45 through 6.6.*Not affected
6.10.4 through 6.10.*Not affected
6.11 and laterNot affected

References

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