{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to avoid uninit-value access in f2fs_sanity_check_node_footer  syzbot reported a f2fs bug as below:  BUG: KMSAN: uninit-value in f2fs_sanity_check_node_footer+0x374/0xa20 fs/f2fs/node.c:1520  f2fs_sanity_check_node_footer+0x374/0xa20 fs/f2fs/node.c:1520  f2fs_finish_read_bio+0xe1e/0x1d60 fs/f2fs/data.c:177  f2fs_read_end_io+0x6ab/0x2220 fs/f2fs/data.c:-1  bio_endio+0x1006/0x1160 block/bio.c:1792  submit_bio_noacct+0x533/0x2960 block/blk-core.c:891  submit_bio+0x57a/0x620 block/blk-core.c:926  blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline]  f2fs_submit_read_bio+0x12c/0x360 fs/f2fs/data.c:557  f2fs_submit_page_bio+0xee2/0x1450 fs/f2fs/data.c:775  read_node_folio+0x384/0x4b0 fs/f2fs/node.c:1481  __get_node_folio+0x5db/0x15d0 fs/f2fs/node.c:1576  f2fs_get_inode_folio+0x40/0x50 fs/f2fs/node.c:1623  do_read_inode fs/f2fs/inode.c:425 [inline]  f2fs_iget+0x1209/0x9380 fs/f2fs/inode.c:596  f2fs_fill_super+0x8f5a/0xb2e0 fs/f2fs/super.c:5184  get_tree_bdev_flags+0x6e6/0x920 fs/super.c:1694  get_tree_bdev+0x38/0x50 fs/super.c:1717  f2fs_get_tree+0x35/0x40 fs/f2fs/super.c:5436  vfs_get_tree+0xb3/0x5d0 fs/super.c:1754  fc_mount fs/namespace.c:1193 [inline]  do_new_mount_fc fs/namespace.c:3763 [inline]  do_new_mount+0x885/0x1dd0 fs/namespace.c:3839  path_mount+0x7a2/0x20b0 fs/namespace.c:4159  do_mount fs/namespace.c:4172 [inline]  __do_sys_mount fs/namespace.c:4361 [inline]  __se_sys_mount+0x704/0x7f0 fs/namespace.c:4338  __x64_sys_mount+0xe4/0x150 fs/namespace.c:4338  x64_sys_call+0x39f0/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:166  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]  do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94  entry_SYSCALL_64_after_hwframe+0x77/0x7f  The root cause is: in f2fs_finish_read_bio(), we may access uninit data in folio if we failed to read the data from device into folio, let's add a check condition to avoid such issue.",
  "id": "DEBIAN-CVE-2026-43349",
  "modified": "2026-09-14T16:47:33.260683180Z",
  "published": "2026-05-08T14:16:44.997Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-43349"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-43349"
  ]
}