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BUG: stack guard page was hit at 000000004bb8d970 (stack is 0000000036dee0a2..0000000023253a65) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 335 Comm: kworker/u4:6 Not tainted 5.9.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:cmp_ex_search+0x2/0xb0 lib/extable.c:96 Code: 41 f7 dc e8 20 32 c2 fd 44 89 e0 5b 5d 41 5c c3 48 89 df e8 00 38 02 fe eb b0 48 89 ef e8 f6 37 02 fe e9 76 ff ff ff 90 41 54 <55> 48 89 fd 53 48 89 f3 e8 f1 31 c2 fd 48 89 ea 48 b8 00 00 00 00 RSP: 0018:ffffc90002090000 EFLAGS: 00010082 RAX: 0000000000000000 RBX: fffff5200041200b RCX: ffffffff839a886f RDX: ffffffff83b21b80 RSI: ffffffff89921cc4 RDI: ffffc90002090078 RBP: 00000000000004f6 R08: ffffffff83b21b80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89921cc4 R13: 000000000000027b R14: ffffffff8991ff00 R15: ffffc90002090078 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000208fff8 CR3: 0000000093005000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __inline_bsearch include/linux/bsearch.h:15 [inline] bsearch+0x57/0xb0 lib/bsearch.c:33 search_extable+0x7f/0xb0 lib/extable.c:120 search_kernel_exception_table kernel/extable.c:48 [inline] search_exception_tables+0x33/0x50 kernel/extable.c:57 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:645 __bad_area_nosemaphore+0xa9/0x4f0 arch/x86/mm/fault.c:835 do_user_addr_fault+0x760/0xbf0 arch/x86/mm/fault.c:1248 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_notrace_thunk+0x5/0x31 arch/x86/entry/thunk_64.S:41 Code: 00 48 8d a0 58 ff ff ff e8 e9 04 46 00 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 a3 b5 f5 06 eb 18 55 48 89 e5 57 <00> 00 00 00 41 50 41 51 41 52 41 53 e8 eb b5 f5 06 eb 00 41 5b 41 RSP: 0018:ffffc900020903d0 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff1308b21 RDX: dffffc0000000000 RSI: ffffffff89bd6980 RDI: 0000000000000082 RBP: ffffc900020903d8 R08: 0000000000000000 R09: ffffffff8ab26b8f R10: fffffbfff1564d71 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:772 [inline] trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x3f0/0xae0 kernel/locking/lockdep.c:4980 rcu_lock_acquire include/linux/rcupdate.h:241 [inline] rcu_read_lock include/linux/rcupdate.h:634 [inline] search_bpf_extables+0x3a/0x2e0 kernel/bpf/core.c:725 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:645 __bad_area_nosemaphore+0xa9/0x4f0 arch/x86/mm/fault.c:835 do_user_addr_fault+0x760/0xbf0 arch/x86/mm/fault.c:1248 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_notrace_thunk+0x5/0x31 arch/x86/entry/thunk_64.S:41 Code: 00 48 8d a0 58 ff ff ff e8 e9 04 46 00 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 a3 b5 f5 06 eb 18 55 48 89 e5 57 <00> 00 00 00 41 50 41 51 41 52 41 53 e8 eb b5 f5 06 eb 00 41 5b 41 RSP: 0018:ffffc900020907f0 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff1308b21 RDX: dffffc0000000000 RSI: ffffffff89bd6980 RDI: 0000000000000082 RBP: ffffc900020907f8 R08: 0000000000000000 R09: ffffffff8ab26b8f R10: fffffbfff1564d71 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:772 [inline] trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x3f0/0xae0 kernel/locking/lockdep.c:4980 rcu_lock_acquire include/linux/rcupdate.h:241 [inline] rcu_read_lock include/linux/rcupdate.h:634 [inline] search_bpf_extables+0x3a/0x2e0 kernel/bpf/core.c:725 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:645 __bad_area_nosemaphore+0xa9/0x4f0 arch/x86/mm/fault.c:835 do_user_addr_fault+0x760/0xbf0 arch/x86/mm/fault.c:1248 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_notrace_thunk+0x5/0x31 arch/x86/entry/thunk_64.S:41 Code: 00 48 8d a0 58 ff ff ff e8 e9 04 46 00 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 a3 b5 f5 06 eb 18 55 48 89 e5 57 <00> 00 00 00 41 50 41 51 41 52 41 53 e8 eb b5 f5 06 eb 00 41 5b 41 RSP: 0018:ffffc90002090c10 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff1308b21 RDX: dffffc0000000000 RSI: ffffffff89bd6980 RDI: 0000000000000082 RBP: ffffc90002090c18 R08: 0000000000000000 R09: ffffffff8ab26b8f R10: fffffbfff1564d71 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:772 [inline] trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x3f0/0xae0 kernel/locking/lockdep.c:4980 rcu_lock_acquire include/linux/rcupdate.h:241 [inline] rcu_read_lock include/linux/rcupdate.h:634 [inline] search_bpf_extables+0x3a/0x2e0 kernel/bpf/core.c:725 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:645 __bad_area_nosemaphore+0xa9/0x4f0 arch/x86/mm/fault.c:835 do_user_addr_fault+0x760/0xbf0 arch/x86/mm/fault.c:1248 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_notrace_thunk+0x5/0x31 arch/x86/entry/thunk_64.S:41 Code: 00 48 8d a0 58 ff ff ff e8 e9 04 46 00 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 a3 b5 f5 06 eb 18 55 48 89 e5 57 <00> 00 00 00 41 50 41 51 41 52 41 53 e8 eb b5 f5 06 eb 00 41 5b 41 RSP: 0018:ffffc90002091030 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff1308b21 RDX: dffffc0000000000 RSI: ffffffff89bd6980 RDI: 0000000000000082 RBP: ffffc90002091038 R08: 0000000000000000 R09: ffffffff8ab26b8f R10: fffffbfff1564d71 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:772 [inline] trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x3f0/0xae0 kernel/locking/lockdep.c:4980 rcu_lock_acquire include/linux/rcupdate.h:241 [inline] rcu_read_lock include/linux/rcupdate.h:634 [inline] search_bpf_extables+0x3a/0x2e0 kernel/bpf/core.c:725 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:645 __bad_area_nosemaphore+0xa9/0x4f0 arch/x86/mm/fault.c:835 do_user_addr_fault+0x760/0xbf0 arch/x86/mm/fault.c:1248 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_notrace_thunk+0x5/0x31 arch/x86/entry/thunk_64.S:41 Code: 00 48 8d a0 58 ff ff ff e8 e9 04 46 00 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 a3 b5 f5 06 eb 18 55 48 89 e5 57 <00> 00 00 00 41 50 41 51 41 52 41 53 e8 eb b5 f5 06 eb 00 41 5b 41 RSP: 0018:ffffc90002091450 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff1308b21 RDX: dffffc0000000000 RSI: ffffffff89bd6980 RDI: 0000000000000082 RBP: ffffc90002091458 R08: 0000000000000000 R09: ffffffff8ab26b8f R10: fffffbfff1564d71 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:772 [inline] trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x3f0/0xae0 kernel/locking/lockdep.c:4980 rcu_lock_acquire include/linux/rcupdate.h:241 [inline] rcu_read_lock include/linux/rcupdate.h:634 [inline] search_bpf_extables+0x3a/0x2e0 kernel/bpf/core.c:725 fixup_exception+0x4b/0xca arch/x86/mm/extable.c:161 no_context+0xe7/0x9f0 arch/x86/mm/fault.c:645 __bad_area_nosemaphore+0xa9/0x4f0 arch/x86/mm/fault.c:835 do_user_addr_fault+0x760/0xbf0 arch/x86/mm/fault.c:1248 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0xa8/0x190 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:538 RIP: 0010:preempt_schedule_notrace_thunk+0x5/0x31 arch/x86/entry/thunk_64.S:41 Code: 00 48 8d a0 58 ff ff ff e8 e9 04 46 00 55 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 a3 b5 f5 06 eb 18 55 48 89 e5 57 <00> 00 00 00 41 50 41 51 41 52 41 53 e8 eb b5 f5 06 eb 00 41 5b 41 RSP: 0018:ffffc90002091870 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffffffff1308b21 RDX: dffffc0000000000 RSI: ffffffff89bd6980 RDI: 0000000000000082 RBP: ffffc90002091878 R08 Lost 705 message(s)! ---[ end trace 9e6b1b6c2b87a920 ]--- RIP: 0010:cmp_ex_search+0x2/0xb0 lib/extable.c:96 Code: 41 f7 dc e8 20 32 c2 fd 44 89 e0 5b 5d 41 5c c3 48 89 df e8 00 38 02 fe eb b0 48 89 ef e8 f6 37 02 fe e9 76 ff ff ff 90 41 54 <55> 48 89 fd 53 48 89 f3 e8 f1 31 c2 fd 48 89 ea 48 b8 00 00 00 00 RSP: 0018:ffffc90002090000 EFLAGS: 00010082 RAX: 0000000000000000 RBX: fffff5200041200b RCX: ffffffff839a886f RDX: ffffffff83b21b80 RSI: ffffffff89921cc4 RDI: ffffc90002090078 RBP: 00000000000004f6 R08: ffffffff83b21b80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89921cc4 R13: 000000000000027b R14: ffffffff8991ff00 R15: ffffc90002090078 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000208fff8 CR3: 0000000093005000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
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2020/09/08 18:21 | upstream | f4d51dffc6c0 | abf9ba4f | .config | console log | report | ci-upstream-kasan-gce |