CVE-2024-36005

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: honor table dormant flag from netdev release event path

Check for table dormant flag otherwise netdev release event path tries

to unregister an already unregistered hook.

[524854.857999] ------------[ cut here ]------------

[524854.858010] WARNING: CPU: 0 PID: 3386599 at net/netfilter/core.c:501 __nf_unregister_net_hook+0x21a/0x260

[...]

[524854.858848] CPU: 0 PID: 3386599 Comm: kworker/u32:2 Not tainted 6.9.0-rc3+ #365

[524854.858869] Workqueue: netns cleanup_net

[524854.858886] RIP: 0010:__nf_unregister_net_hook+0x21a/0x260

[524854.858903] Code: 24 e8 aa 73 83 ff 48 63 43 1c 83 f8 01 0f 85 3d ff ff ff e8 98 d1 f0 ff 48 8b 3c 24 e8 8f 73 83 ff 48 63 43 1c e9 26 ff ff ff <0f> 0b 48 83 c4 18 48 c7 c7 00 68 e9 82 5b 5d 41 5c 41 5d 41 5e 41

[524854.858914] RSP: 0018:ffff8881e36d79e0 EFLAGS: 00010246

[524854.858926] RAX: 0000000000000000 RBX: ffff8881339ae790 RCX: ffffffff81ba524a

[524854.858936] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8881c8a16438

[524854.858945] RBP: ffff8881c8a16438 R08: 0000000000000001 R09: ffffed103c6daf34

[524854.858954] R10: ffff8881e36d79a7 R11: 0000000000000000 R12: 0000000000000005

[524854.858962] R13: ffff8881c8a16000 R14: 0000000000000000 R15: ffff8881351b5a00

[524854.858971] FS: 0000000000000000(0000) GS:ffff888390800000(0000) knlGS:0000000000000000

[524854.858982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

[524854.858991] CR2: 00007fc9be0f16f4 CR3: 00000001437cc004 CR4: 00000000001706f0

[524854.859000] Call Trace:

[524854.859006] <TASK>

[524854.859013] ? __warn+0x9f/0x1a0

[524854.859027] ? __nf_unregister_net_hook+0x21a/0x260

[524854.859044] ? report_bug+0x1b1/0x1e0

[524854.859060] ? handle_bug+0x3c/0x70

[524854.859071] ? exc_invalid_op+0x17/0x40

[524854.859083] ? asm_exc_invalid_op+0x1a/0x20

[524854.859100] ? __nf_unregister_net_hook+0x6a/0x260

[524854.859116] ? __nf_unregister_net_hook+0x21a/0x260

[524854.859135] nf_tables_netdev_event+0x337/0x390 [nf_tables]

[524854.859304] ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables]

[524854.859461] ? packet_notifier+0xb3/0x360

[524854.859476] ? _raw_spin_unlock_irqrestore+0x11/0x40

[524854.859489] ? dcbnl_netdevice_event+0x35/0x140

[524854.859507] ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables]

[524854.859661] notifier_call_chain+0x7d/0x140

[524854.859677] unregister_netdevice_many_notify+0x5e1/0xae0