general protection fault, probably for non-canonical address 0xdffffc0000000038: 0000 [#1] SMP KASAN KASAN: null-ptr-deref in range [0x00000000000001c0-0x00000000000001c7] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__queue_work+0xa2/0xe80 kernel/workqueue.c:1418 Code: 85 db 0f 84 eb 06 00 00 e8 eb 8a 26 00 49 8d 87 c0 01 00 00 48 89 c2 48 89 44 24 10 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 95 0b 00 00 41 8b 9f c0 01 00 RSP: 0018:ffffc9000011fcb0 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 0000000000000038 RSI: ffffffff811ad8b5 RDI: 0000000000000003 RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000052b64100 R10: ffffffff811adfb0 R11: 0000000000000000 R12: ffff88811c4abb90 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ead0e2a160 CR3: 0000000007425000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0xee/0x110 kernel/workqueue.c:1525 queue_work include/linux/workqueue.h:507 [inline] ieee80211_queue_work net/mac80211/util.c:924 [inline] ieee80211_queue_work+0x129/0x160 net/mac80211/util.c:917 ath9k_wmi_event_tasklet+0x2d0/0x3f0 drivers/net/wireless/ath/ath9k/wmi.c:168 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:783 __do_softirq+0x1b0/0x910 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:920 [inline] run_ksoftirqd+0x21/0x50 kernel/softirq.c:912 smpboot_thread_fn+0x3be/0x860 kernel/smpboot.c:164 kthread+0x3c0/0x4a0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 70cb6500b01f392a ]--- RIP: 0010:__queue_work+0xa2/0xe80 kernel/workqueue.c:1418 Code: 85 db 0f 84 eb 06 00 00 e8 eb 8a 26 00 49 8d 87 c0 01 00 00 48 89 c2 48 89 44 24 10 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 95 0b 00 00 41 8b 9f c0 01 00 RSP: 0018:ffffc9000011fcb0 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100 RDX: 0000000000000038 RSI: ffffffff811ad8b5 RDI: 0000000000000003 RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000052b64100 R10: ffffffff811adfb0 R11: 0000000000000000 R12: ffff88811c4abb90 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ead0e2a160 CR3: 0000000007425000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 85 db test %ebx,%ebx 2: 0f 84 eb 06 00 00 je 0x6f3 8: e8 eb 8a 26 00 callq 0x268af8 d: 49 8d 87 c0 01 00 00 lea 0x1c0(%r15),%rax 14: 48 89 c2 mov %rax,%rdx 17: 48 89 44 24 10 mov %rax,0x10(%rsp) 1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 23: fc ff df 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e 95 0b 00 00 jle 0xbcf 3a: 41 rex.B 3b: 8b .byte 0x8b 3c: 9f lahf 3d: c0 01 00 rolb $0x0,(%rcx)