CVE-2022-49318

published 2025-02-26

CVE-2022-49318: In the Linux kernel, the following vulnerability has been resolved: f2fs: remove WARN_ON in f2fs_is_valid_blkaddr Syzbot triggers two WARNs in…

Priority P4 18 medium 5.5 CVSS 3.1

AV L AC L PR L UI N S U C N I N A H

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

f2fs: remove WARN_ON in f2fs_is_valid_blkaddr

Syzbot triggers two WARNs in f2fs_is_valid_blkaddr and
__is_bitmap_valid. For example, in f2fs_is_valid_blkaddr,
if type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ,
it invokes WARN_ON if blkaddr is not in the right range.
The call trace is as follows:

f2fs_get_node_info+0x45f/0x1070
read_node_page+0x577/0x1190
__get_node_page.part.0+0x9e/0x10e0
__get_node_page
f2fs_get_node_page+0x109/0x180
do_read_inode
f2fs_iget+0x2a5/0x58b0
f2fs_fill_super+0x3b39/0x7ca0

Fix these two WARNs by replacing WARN_ON with dump_stack.

Affected

17 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 5.18.5-1 (bookworm)	linux 5.18.5-1 (bookworm)
linux	linux	—	—
linux	linux	>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd	0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd
linux	linux	>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 32bea51fe4c6e92c00403739f7547c89219bea88	32bea51fe4c6e92c00403739f7547c89219bea88
linux	linux	>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 99c09b298e47ebbe345a6da9f268b32a6b0f4582	99c09b298e47ebbe345a6da9f268b32a6b0f4582
linux	linux	>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < cd6374af36cc548464d8c47a93fdba7303bb82a4	cd6374af36cc548464d8c47a93fdba7303bb82a4
linux	linux	>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 8c62c5e26345c34d199b4b8c8e69255ba3d0e751	8c62c5e26345c34d199b4b8c8e69255ba3d0e751
linux	linux	>= 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < dc2f78e2d4cc844a1458653d57ce1b54d4a29f21	dc2f78e2d4cc844a1458653d57ce1b54d4a29f21
linux	linux_kernel	< 5.4.198	5.4.198
linux	linux_kernel	>= 0 < 5.10.127-1	5.10.127-1
linux	linux_kernel	>= 0 < 5.18.5-1	5.18.5-1
linux	linux_kernel	>= 0 < 5.18.5-1	5.18.5-1
linux	linux_kernel	>= 0 < 5.18.5-1	5.18.5-1
linux	linux_kernel	>= 5.11 < 5.15.47	5.15.47
linux	linux_kernel	>= 5.16 < 5.17.15	5.17.15
linux	linux_kernel	>= 5.18 < 5.18.4	5.18.4
linux	linux_kernel	>= 5.5 < 5.10.122	5.10.122

CVSS provenance

nvd v3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv 5.5 MEDIUM

vendor_debian 5.5 MEDIUM

vendor_redhat 5.5 MEDIUM

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.