The vulnerability of the functions __is_bitmap_valid() (fs/f2fs/checkpoint.c) and do_recover_data() (fs/f2fs/recovery.c) in the Linux kernel-based file system F2FS allows a attacker to trigger a service failure.

🗓️ 26 Jun 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType

bdu_fstec

bdu_fstec🔗 bdu.fstec.ru👁 1 Views

Input validation flaws in F2FS __is_bitmap_valid and do_recover_data could trigger a service failure.

Reporter	Title	Published	Views	Family All 18
AstraLinux	Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15	19 Jun 202611:10	–	astralinux
CNNVD	Linux kernel 安全漏洞	15 Sep 202500:00	–	cnnvd
CVE	CVE-2022-50273	15 Sep 202514:21	–	cve
Cvelist	CVE-2022-50273 f2fs: fix to do sanity check on destination blkaddr during recovery	15 Sep 202514:21	–	cvelist
Debian CVE	CVE-2022-50273	15 Sep 202514:21	–	debiancve
EUVD	EUVD-2022-55582	3 Oct 202520:07	–	euvd
NVD	CVE-2022-50273	15 Sep 202515:15	–	nvd
OSV	CVE-2022-50273 f2fs: fix to do sanity check on destination blkaddr during recovery	15 Sep 202514:21	–	osv
OSV	DEBIAN-CVE-2022-50273	15 Sep 202515:15	–	osv
OSV	UBUNTU-CVE-2022-50273	15 Sep 202515:15	–	osv

Source	Link
cve	www.cve.org/CVERecord
git	www.git.kernel.org/stable/c/68b1e607559d3dc85f94b0d738d7c4e8029b0cfa
git	www.git.kernel.org/stable/c/73fb4bd2c055a393816f078f158cdd3025006f1d
git	www.git.kernel.org/stable/c/ed854f10e6afd5cbd5c3274d4c4df4bfe0ab4362
git	www.git.kernel.org/stable/c/8f0a47def4722c5fd8d6b9268b5ffed8a249e2db
git	www.git.kernel.org/stable/c/3a4d24d746866dd45d970bd565ff3886e839366a
git	www.git.kernel.org/linus/0ef4ca04a3f9223ff8bc440041c524b2123e09a3
kernel	www.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220
kernel	www.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150
kernel	www.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75

26 Jun 2026 00:00Current

6Medium risk

Vulners AI Score6

CVSS 24.6

CVSS 35.5

EPSS0.00145

linux kernel f2fs filesystem input validation __is_bitmap_valid do_recover_data service failure security vulnerability