Messages in this thread | | | From | Yikebaer Aizezi <> | Date | Tue, 15 Aug 2023 23:17:22 +0800 | Subject | WARNING in ip6_tnl_exit_batch_net |
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Hello,
When using Healer to fuzz the Latest Linux-6.5-rc6, the following crash was triggered.
HEAD commit: 2ccdd1b13c591d306f0401d98dedc4bdcd02b421 (tag: v6.5-rc6) git tree: upstream
console output: https://drive.google.com/file/d/1ltIU2bvgBY5RQd832oDuxrWz7JP7FbLi/view?usp=drive_link kernel config:https://drive.google.com/file/d/1V8arEniPN_yA0gYKWFr-hCZR6AGFPpfB/view?usp=drive_link C reproducer:https://drive.google.com/file/d/1bk8vG04VswMLyahjItM-Cmq86UKPupmg/view?usp=drive_link Syzlang reproducer: https://drive.google.com/file/d/1ZhcjI74kh0UzAjXWbQSZTeCVM43wZ3Hq/view?usp=drive_link
If you fix this issue, please add the following tag to the commit: Reported-by: Yikebaer Aizezi <yikebaer61@gmail.com>
------------[ cut here ]------------ WARNING: CPU: 0 PID: 11 at net/core/dev.c:10876 unregister_netdevice_many_notify+0x13eb/0x18a0 net/core/dev.c:10876 Modules linked in: CPU: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.5.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x13eb/0x18a0 net/core/dev.c:10876 Code: b4 1a 00 00 48 c7 c6 00 89 f7 8a 48 c7 c7 40 89 f7 8a c6 05 3f 4c 56 06 01 e8 71 b9 9e f9 0f 0b e9 49 f7 ff ff e8
55 b5 d6 f9 <0f> 0b e9 20 f7 ff ff e8 49 b5 d6 f9 0f 0b e9 5f f7 ff ff e8 6d 81 RSP: 0018:ffffc900000dfa40 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000c15ba01 RCX: 0000000000000000 RDX: ffff88801405bc00 RSI: ffffffff87a9b59b RDI: 0000000000000001 RBP: ffff8880288d2900 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008e001 R12: 0000000000000000 R13: ffff8880288d2900 R14: ffff888027768000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888063c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d3acdd9680 CR3: 0000000018876000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ip6_tnl_exit_batch_net+0x579/0x6e0 net/ipv6/ip6_tunnel.c:2278 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:614 process_one_work+0xa22/0x16e0 kernel/workqueue.c:2600 worker_thread+0x679/0x10c0 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x28/0x60 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 </TASK>
Modules linked in: CPU: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.5.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:unregister_netdevice_many_notify+0x13eb/0x18a0 net/core/dev.c:10876 Code: b4 1a 00 00 48 c7 c6 00 89 f7 8a 48 c7 c7 40 89 f7 8a c6 05 3f 4c 56 06 01 e8 71 b9 9e f9 0f 0b e9 49 f7 ff ff e8
55 b5 d6 f9 <0f> 0b e9 20 f7 ff ff e8 49 b5 d6 f9 0f 0b e9 5f f7 ff ff e8 6d 81 RSP: 0018:ffffc900000dfa40 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000c15ba01 RCX: 0000000000000000 RDX: ffff88801405bc00 RSI: ffffffff87a9b59b RDI: 0000000000000001 RBP: ffff8880288d2900 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008e001 R12: 0000000000000000 R13: ffff8880288d2900 R14: ffff888027768000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888063c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d3acdd9680 CR3: 0000000018876000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ip6_tnl_exit_batch_net+0x579/0x6e0 net/ipv6/ip6_tunnel.c:2278 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:614 process_one_work+0xa22/0x16e0 kernel/workqueue.c:2600 worker_thread+0x679/0x10c0 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x28/0x60 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 </TASK> Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.5.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Workqueue: netns cleanup_net Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd5/0x150 lib/dump_stack.c:106 panic+0x67e/0x730 kernel/panic.c:340 check_panic_on_warn+0xad/0xb0 kernel/panic.c:236 __warn+0xee/0x390 kernel/panic.c:673 __report_bug lib/bug.c:199 [inline] report_bug+0x2d9/0x500 lib/bug.c:219 handle_bug+0x3c/0x70 arch/x86/kernel/traps.c:326 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:347 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:568 RIP: 0010:unregister_netdevice_many_notify+0x13eb/0x18a0 net/core/dev.c:10876 Code: b4 1a 00 00 48 c7 c6 00 89 f7 8a 48 c7 c7 40 89 f7 8a c6 05 3f 4c 56 06 01 e8 71 b9 9e f9 0f 0b e9 49 f7 ff ff e8
55 b5 d6 f9 <0f> 0b e9 20 f7 ff ff e8 49 b5 d6 f9 0f 0b e9 5f f7 ff ff e8 6d 81 RSP: 0018:ffffc900000dfa40 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000c15ba01 RCX: 0000000000000000 RDX: ffff88801405bc00 RSI: ffffffff87a9b59b RDI: 0000000000000001 RBP: ffff8880288d2900 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008e001 R12: 0000000000000000 R13: ffff8880288d2900 R14: ffff888027768000 R15: dffffc0000000000 ip6_tnl_exit_batch_net+0x579/0x6e0 net/ipv6/ip6_tunnel.c:2278 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:614 process_one_work+0xa22/0x16e0 kernel/workqueue.c:2600 worker_thread+0x679/0x10c0 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x28/0x60 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 </TASK> Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 1 seconds..
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