The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - btrfs: fix block_group_tree dirty_list corruption When the incompat flag EXTENT_TREE_V2 is set, we     unconditionally add the block group tree to the switch_commits list before calling switch_commit_roots, as     we do for the tree root and the chunk root. However, the block group tree uses normal root dirty tracking     and in any transaction that does an allocation and dirties a block group, the block group root will     already be linked to a list by the dirty_list field and this use of list_add_tail() is invalid and     corrupts the prev/next members of block_group_root->dirty_list. This is apparent on a subsequent list_del     on the prev if we enable CONFIG_DEBUG_LIST: [32.1571] ------------[ cut here ]------------ [32.1572]     list_del corruption. next->prev should beffff958890202538, but was ffff9588992bd538.
    (next=ffff958890201538) [32.1575] WARNING: lib/list_debug.c:65 at 0x0, CPU#3: sync/607 [32.1583] CPU: 3     UID: 0 PID: 607 Comm: sync Not tainted 6.18.0 #24PREEMPT(none) [32.1585] Hardware name: QEMU Standard PC     (Q35 + ICH9, 2009), BIOS1.17.0-4.fc41 04/01/2014 [32.1587] RIP:
    0010:__list_del_entry_valid_or_report+0x108/0x120 [32.1593] RSP: 0018:ffffaa288287fdd0 EFLAGS: 00010202     [32.1594] RAX: 0000000000000001 RBX: ffff95889326e800 RCX:ffff958890201538 [32.1596] RDX: ffff9588992bd538     RSI: ffff958890202538 RDI:ffffffff82a41e00 [32.1597] RBP: ffff958890202538 R08: ffffffff828fc1e8     R09:00000000ffffefff [32.1599] R10: ffffffff8288c200 R11: ffffffff828e4200 R12:ffff958890201538 [32.1601]     R13: ffff95889326e958 R14: ffff958895c24000 R15:ffff958890202538 [32.1603] FS: 00007f0c28eb5740(0000)     GS:ffff958af2bd2000(0000)knlGS:0000000000000000 [32.1605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033     [32.1607] CR2: 00007f0c28e8a3cc CR3: 0000000109942005 CR4:0000000000370ef0 [32.1609] Call Trace: [32.1610]     <TASK> [32.1611] switch_commit_roots+0x82/0x1d0 [btrfs] [32.1615] btrfs_commit_transaction+0x968/0x1550     [btrfs] [32.1618] ? btrfs_attach_transaction_barrier+0x23/0x60 [btrfs] [32.1621]
    __iterate_supers+0xe8/0x190 [32.1622] ? __pfx_sync_fs_one_sb+0x10/0x10 [32.1623] ksys_sync+0x63/0xb0     [32.1624] __do_sys_sync+0xe/0x20 [32.1625] do_syscall_64+0x73/0x450 [32.1626]     entry_SYSCALL_64_after_hwframe+0x76/0x7e [32.1627] RIP: 0033:0x7f0c28d05d2b [32.1632] RSP:
    002b:00007ffc9d988048 EFLAGS: 00000246 ORIG_RAX:00000000000000a2 [32.1634] RAX: ffffffffffffffda RBX:
    00007ffc9d988228 RCX:00007f0c28d05d2b [32.1636] RDX: 00007f0c28e02301 RSI: 00007ffc9d989b21     RDI:00007f0c28dba90d [32.1637] RBP: 0000000000000001 R08: 0000000000000001 R09:0000000000000000 [32.1639]     R10: 0000000000000000 R11: 0000000000000246 R12:000055b96572cb80 [32.1641] R13: 000055b96572b19f R14:
    00007f0c28dfa434 R15:000055b96572b034 [32.1643] </TASK> [32.1644] irq event stamp: 0 [32.1644] hardirqs     last enabled at (0): [<0000000000000000>] 0x0 [32.1646] hardirqs last disabled at (0):
    [<ffffffff81298817>]copy_process+0xb37/0x2260 [32.1648] softirqs last enabled at (0):
    [<ffffffff81298817>]copy_process+0xb37/0x2260 [32.1650] softirqs last disabled at (0):
    [<0000000000000000>] 0x0 [32.1652] ---[ end trace 0000000000000000 ]--- Furthermore, this list corruption     eventually (when we happen to add a new block group) results in getting the switch_commits and     dirty_cowonly_roots lists mixed up and attempting to call update_root on the tree root which can't be     found in the tree root, resulting in a transaction abort: [87.8269] BTRFS critical (device nvme1n1):
    unable to find root key (1 0 0) in tree 1 [87.8272] ------------[ cut here ]------------ [87.8274] BTRFS:
    Transaction aborted (error -117) [87.8275] WARNING: fs/btrfs/root-tree.c:153 at 0x0, CPU#4: sync/703     [87.8285] CPU: 4 UID: 0 PID: 703 Comm: sync Not tainted 6.18.0 #25 PREEMPT(none) [87.8287] Hardware name:
    QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-4.fc41 0 ---truncated--- (CVE-2026-46251)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-46251

high Nessus Plugin ID 318576

Version 1.12