watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [kworker/1:1:27837] Modules linked in: irq event stamp: 606932 hardirqs last enabled at (606931): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 hardirqs last disabled at (606932): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (580360): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (580360): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 softirqs last disabled at (580331): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (580331): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 CPU: 1 PID: 27837 Comm: kworker/1:1 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events prog_array_map_clear_deferred RIP: 0010:check_region_inline mm/kasan/generic.c:170 [inline] RIP: 0010:kasan_check_range+0x12c/0x180 mm/kasan/generic.c:189 Code: 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a 5b 01 00 00 00 5d 41 5c c3 44 89 c2 e8 73 f0 ff ff 5b 83 f0 01 5d RSP: 0018:ffffc90002bafac0 EFLAGS: 00000246 RAX: ffffed1009911a0d RBX: 0000000000000000 RCX: ffffffff893962fc RDX: ffffed1009911a0d RSI: 0000000000000008 RDI: ffff88804c88d060 RBP: ffffed1009911a0c R08: 0000000000000000 R09: ffff88804c88d067 R10: ffffed1009911a0c R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 00000000065d1593 R15: 0000000008000009 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e057b29e0 CR3: 000000000b68e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_long_read include/linux/atomic/atomic-instrumented.h:1183 [inline] __mutex_trylock_common kernel/locking/mutex.c:104 [inline] __mutex_trylock kernel/locking/mutex.c:149 [inline] __mutex_lock_common kernel/locking/mutex.c:609 [inline] __mutex_lock+0x13c/0x12f0 kernel/locking/mutex.c:740 fd_array_map_delete_elem+0x120/0x2e0 kernel/bpf/arraymap.c:821 bpf_fd_array_map_clear kernel/bpf/arraymap.c:871 [inline] prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1050 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6967 Comm: kworker/0:6 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events prog_array_map_clear_deferred RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x60 kernel/kcov.c:197 Code: ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 00 65 8b 05 69 fd 8a 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 00 01 ff 00 74 0e RSP: 0018:ffffc90018c3fc30 EFLAGS: 00000292 RAX: 0000000000000000 RBX: ffffc90018c41000 RCX: 0000000000000000 RDX: ffff8880269fba00 RSI: ffffffff818d6997 RDI: ffffc90018c41000 RBP: ffffc90018c3fca8 R08: 0000000008000009 R09: ffffc90018c3fb87 R10: ffffffff818d8d58 R11: 0000000000000000 R12: fffff52003188204 R13: ffffc90018c3fca8 R14: 0000000006609aff R15: 0000000008000009 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e058159e0 CR3: 000000000b68e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: fd_array_map_delete_elem+0x17/0x2e0 kernel/bpf/arraymap.c:815 bpf_fd_array_map_clear kernel/bpf/arraymap.c:871 [inline] prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1050 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 00 74 ef 49 add %dh,0x49(%rdi,%rbp,8) 4: 8d 04 2c lea (%rsp,%rbp,1),%eax 7: 48 85 d2 test %rdx,%rdx a: 75 0b jne 0x17 c: 48 89 da mov %rbx,%rdx f: 48 29 c2 sub %rax,%rdx 12: e9 55 ff ff ff jmpq 0xffffff6c 17: 49 39 d2 cmp %rdx,%r10 1a: 75 17 jne 0x33 1c: 49 0f be 02 movsbq (%r10),%rax 20: 41 83 e1 07 and $0x7,%r9d 24: 49 39 c1 cmp %rax,%r9 27: 7d 0a jge 0x33 29: 5b pop %rbx * 2a: b8 01 00 00 00 mov $0x1,%eax <-- trapping instruction 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 retq 33: 44 89 c2 mov %r8d,%edx 36: e8 73 f0 ff ff callq 0xfffff0ae 3b: 5b pop %rbx 3c: 83 f0 01 xor $0x1,%eax 3f: 5d pop %rbp