BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 64a95067 P4D 64a95067 PUD 64a96067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 3 PID: 11200 Comm: syz-executor.3 Not tainted 5.11.0-rc5-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:__traceiter_sys_enter+0x11/0x40 include/trace/events/syscalls.h:18 Code: 8b 1d b3 ac bd 0d 31 ff 48 89 de e8 f9 ac 11 00 48 85 db 5b 0f 95 c0 c3 cc 41 54 49 89 f4 55 48 89 d5 53 48 8b 1d 6f d0 8e 0b <48> 8b 03 48 8b 7b 08 48 83 c3 18 48 89 ea 4c 89 e6 ff d0 48 8b 03 RSP: 0018:ffffc90001097ef8 EFLAGS: 00010286 RAX: ffff88801f560790 RBX: 0000000000000000 RCX: 1ffffffff1a06e91 RDX: 000000000000004e RSI: ffffc90001097f58 RDI: ffffc90000682000 RBP: 000000000000004e R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81789718 R11: 0000000000000000 R12: ffffc90001097f58 R13: 000000000000004e R14: 000000000000004e R15: 0000000000000000 FS: 0000000002d0e940(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000064a94000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_sys_enter include/trace/events/syscalls.h:18 [inline] syscall_trace_enter.constprop.0+0x20d/0x260 kernel/entry/common.c:76 do_syscall_64+0xf/0x70 arch/x86/entry/common.c:41 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c1bb Code: 41 5d c3 64 41 83 3c 24 02 74 b6 31 d2 eb b9 41 57 41 56 48 63 ff 41 55 41 54 b8 4e 00 00 00 55 53 48 89 f3 48 83 ec 08 0f 05 <48> 3d 00 f0 ff ff 77 55 48 8d 2c 06 49 89 c4 48 39 ee 73 34 90 44 RSP: 002b:00007ffdd1cb59d0 EFLAGS: 00000202 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 0000000002d0fa90 RCX: 000000000045c1bb RDX: 0000000000008000 RSI: 0000000002d0fa90 RDI: 0000000000000003 RBP: 0000000002d0fa90 R08: 0000000000000003 R09: 0000000000008040 R10: 0000000000000000 R11: 0000000000000202 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000032 R15: 000000000003ce07 Modules linked in: CR2: 0000000000000000 ---[ end trace 4d56709ed2f5b624 ]--- RIP: 0010:__traceiter_sys_enter+0x11/0x40 include/trace/events/syscalls.h:18 Code: 8b 1d b3 ac bd 0d 31 ff 48 89 de e8 f9 ac 11 00 48 85 db 5b 0f 95 c0 c3 cc 41 54 49 89 f4 55 48 89 d5 53 48 8b 1d 6f d0 8e 0b <48> 8b 03 48 8b 7b 08 48 83 c3 18 48 89 ea 4c 89 e6 ff d0 48 8b 03 RSP: 0018:ffffc90001097ef8 EFLAGS: 00010286 RAX: ffff88801f560790 RBX: 0000000000000000 RCX: 1ffffffff1a06e91 RDX: 000000000000004e RSI: ffffc90001097f58 RDI: ffffc90000682000 RBP: 000000000000004e R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81789718 R11: 0000000000000000 R12: ffffc90001097f58 R13: 000000000000004e R14: 000000000000004e R15: 0000000000000000 FS: 0000000002d0e940(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000064a94000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400