{"id":"DEBIAN-CVE-2025-38163","details":"In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to do sanity check on sbi-\u003etotal_valid_block_count  syzbot reported a f2fs bug as below:  ------------[ cut here ]------------ kernel BUG at fs/f2fs/f2fs.h:2521! RIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521 Call Trace:  f2fs_truncate_data_blocks_range+0xc8c/0x11a0 fs/f2fs/file.c:695  truncate_dnode+0x417/0x740 fs/f2fs/node.c:973  truncate_nodes+0x3ec/0xf50 fs/f2fs/node.c:1014  f2fs_truncate_inode_blocks+0x8e3/0x1370 fs/f2fs/node.c:1197  f2fs_do_truncate_blocks+0x840/0x12b0 fs/f2fs/file.c:810  f2fs_truncate_blocks+0x10d/0x300 fs/f2fs/file.c:838  f2fs_truncate+0x417/0x720 fs/f2fs/file.c:888  f2fs_setattr+0xc4f/0x12f0 fs/f2fs/file.c:1112  notify_change+0xbca/0xe90 fs/attr.c:552  do_truncate+0x222/0x310 fs/open.c:65  handle_truncate fs/namei.c:3466 [inline]  do_open fs/namei.c:3849 [inline]  path_openat+0x2e4f/0x35d0 fs/namei.c:4004  do_filp_open+0x284/0x4e0 fs/namei.c:4031  do_sys_openat2+0x12b/0x1d0 fs/open.c:1429  do_sys_open fs/open.c:1444 [inline]  __do_sys_creat fs/open.c:1522 [inline]  __se_sys_creat fs/open.c:1516 [inline]  __x64_sys_creat+0x124/0x170 fs/open.c:1516  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]  do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94  The reason is: in fuzzed image, sbi-\u003etotal_valid_block_count is inconsistent w/ mapped blocks indexed by inode, so, we should not trigger panic for such case, instead, let's print log and set fsck flag.","modified":"2026-09-01T16:06:14.053119517Z","published":"2025-07-03T09:15:31.727Z","upstream":["CVE-2025-38163"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-38163"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.147-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.140-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38163.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.35-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38163.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.35-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38163.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"}]}