general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 21265 Comm: syz-executor.3 Not tainted 5.14.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51 Code: 0f 84 e9 3b 1c 05 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 ea 3b 1c 05 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 a1 3b 1c 05 49 8d 7d RSP: 0018:ffffc900021077b0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88803d4b0000 RCX: ffffc9000fd89000 RDX: 0000000000000000 RSI: ffffffff8468290a RDI: ffff88803d4b00c8 RBP: ffff88803d4b00c0 R08: 0000000000000002 R09: 0000000000000000 R10: ffffffff846828f9 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: ffff88803d4b0078 FS: 00007fcb1e541700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004e4b40 CR3: 000000002f623000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:132 [inline] list_del_init include/linux/list.h:204 [inline] __fw_load_abort drivers/base/firmware_loader/fallback.c:97 [inline] __fw_load_abort drivers/base/firmware_loader/fallback.c:88 [inline] kill_pending_fw_fallback_reqs+0x112/0x370 drivers/base/firmware_loader/fallback.c:119 fw_pm_notify+0xa2/0x140 drivers/base/firmware_loader/main.c:1450 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 notifier_call_chain_robust kernel/notifier.c:118 [inline] blocking_notifier_call_chain_robust kernel/notifier.c:302 [inline] blocking_notifier_call_chain_robust+0xc4/0x160 kernel/notifier.c:290 pm_notifier_call_chain_robust+0x26/0x60 kernel/power/main.c:87 snapshot_open+0x190/0x2a0 kernel/power/user.c:75 misc_open+0x372/0x4a0 drivers/char/misc.c:141 chrdev_open+0x266/0x770 fs/char_dev.c:414 do_dentry_open+0x4c8/0x11d0 fs/open.c:826 do_open fs/namei.c:3374 [inline] path_openat+0x1c23/0x27f0 fs/namei.c:3507 do_filp_open+0x1aa/0x400 fs/namei.c:3534 do_sys_openat2+0x16d/0x420 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_openat fs/open.c:1236 [inline] __se_sys_openat fs/open.c:1231 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1231 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb1e541188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 00000000ffffff9c RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd54cd91ef R14: 00007fcb1e541300 R15: 0000000000022000 Modules linked in: ---[ end trace 11cd0274d3074a66 ]--- RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51 Code: 0f 84 e9 3b 1c 05 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 ea 3b 1c 05 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 a1 3b 1c 05 49 8d 7d RSP: 0018:ffffc900021077b0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88803d4b0000 RCX: ffffc9000fd89000 RDX: 0000000000000000 RSI: ffffffff8468290a RDI: ffff88803d4b00c8 RBP: ffff88803d4b00c0 R08: 0000000000000002 R09: 0000000000000000 R10: ffffffff846828f9 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: ffff88803d4b0078 FS: 00007fcb1e541700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6bee795f98 CR3: 000000002f623000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400