general protection fault in kernel

Title	Replies (including bot)	Last reply
[PATCH net] tipc: fix a null-ptr-deref in tipc_topsrv_accept	3 (3)	2022/10/21 05:10
[syzbot] general protection fault in kernel_accept (5)	2 (3)	2022/10/17 21:50

Title

Replies (including bot)

Last reply

[PATCH net] tipc: fix a null-ptr-deref in tipc_topsrv_accept

3 (3)

2022/10/21 05:10

[syzbot] general protection fault in kernel_accept (5)

2 (3)

2022/10/17 21:50

Kernel	Title	Repro	Count	Last	Reported	Patched	Status
android-54	general protection fault in kernel_accept		1	545d	545d	0/2	auto-obsoleted due to no activity on 2023/02/26 16:35
upstream	general protection fault in kernel_accept (3) tipc		1	880d	874d	0/26	auto-closed as invalid on 2022/03/28 23:53
upstream	general protection fault in kernel_accept (2) tipc		2	1009d	1037d	0/26	closed as invalid on 2021/10/04 21:36
upstream	general protection fault in kernel_accept net s390	C	280	1955d	2116d	11/26	fixed on 2019/03/06 07:43
upstream	general protection fault in kernel_accept (4) tipc		3	707d	738d	0/26	auto-closed as invalid on 2022/08/18 19:01

general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 3 PID: 12841 Comm: kworker/u16:2 Not tainted 6.0.0-rc6-syzkaller-00210-gbf682942cd26 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Workqueue: tipc_rcv tipc_topsrv_accept RIP: 0010:kernel_accept+0x22d/0x350 net/socket.c:3487 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e3 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 20 48 8d 7b 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ee 00 00 00 48 8b 7b 08 e8 a0 36 1c fa e8 8b ff RSP: 0018:ffffc9000494fc28 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff874c37b2 RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000449 R12: 0000000000000000 R13: ffff888027a7b980 R14: ffff888028bc08e0 R15: 1ffff92000929f90 FS: 0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa6e1a8c920 CR3: 000000004bba0000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> tipc_topsrv_accept+0x197/0x280 net/tipc/topsrv.c:460 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:kernel_accept+0x22d/0x350 net/socket.c:3487 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e3 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 20 48 8d 7b 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ee 00 00 00 48 8b 7b 08 e8 a0 36 1c fa e8 8b ff RSP: 0018:ffffc9000494fc28 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff874c37b2 RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000449 R12: 0000000000000000 R13: ffff888027a7b980 R14: ffff888028bc08e0 R15: 1ffff92000929f90 FS: 0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0154d8000 CR3: 000000006fb4b000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 89 fa mov %rdi,%rdx 3: 48 c1 ea 03 shr $0x3,%rdx 7: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) b: 0f 85 e3 00 00 00 jne 0xf4 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8b 5b 20 mov 0x20(%rbx),%rbx 1f: 48 8d 7b 08 lea 0x8(%rbx),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 ee 00 00 00 jne 0x122 34: 48 8b 7b 08 mov 0x8(%rbx),%rdi 38: e8 a0 36 1c fa callq 0xfa1c36dd 3d: e8 .byte 0xe8 3e: 8b ff mov %edi,%edi