{"id":"DEBIAN-CVE-2022-49363","details":"In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to do sanity check on block address in f2fs_do_zero_range()  As Yanming reported in bugzilla:  https://bugzilla.kernel.org/show_bug.cgi?id=215894  I have encountered a bug in F2FS file system in kernel v5.17.  I have uploaded the system call sequence as case.c, and a fuzzed image can be found in google net disk  The kernel should enable CONFIG_KASAN=y and CONFIG_KASAN_INLINE=y. You can reproduce the bug by running the following commands:  kernel BUG at fs/f2fs/segment.c:2291! Call Trace:  f2fs_invalidate_blocks+0x193/0x2d0  f2fs_fallocate+0x2593/0x4a70  vfs_fallocate+0x2a5/0xac0  ksys_fallocate+0x35/0x70  __x64_sys_fallocate+0x8e/0xf0  do_syscall_64+0x3b/0x90  entry_SYSCALL_64_after_hwframe+0x44/0xae  The root cause is, after image was fuzzed, block mapping info in inode will be inconsistent with SIT table, so in f2fs_fallocate(), it will cause panic when updating SIT with invalid blkaddr.  Let's fix the issue by adding sanity check on block address before updating SIT table with it.","modified":"2026-09-01T20:04:54.467301216Z","published":"2025-02-26T07:01:12.953Z","upstream":["CVE-2022-49363"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49363"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49363.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49363.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.18.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49363.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}