general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 0 PID: 4473 Comm: syz-executor.4 Not tainted 5.14.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kill_pending_fw_fallback_reqs+0x22e/0x370 drivers/base/firmware_loader/fallback.c:116
Code: d2 0f 85 86 00 00 00 c7 43 78 03 00 00 00 48 8d 7b 20 e8 25 9f ef fc e8 d0 77 0d fd 4d 8d a5 c0 00 00 00 4c 89 e0 48 c1 e8 03 <80> 3c 28 00 75 46 49 8b 85 c0 00 00 00 4c 89 eb 48 2d c0 00 00 00
RSP: 0018:ffffc900091e77d0 EFLAGS: 00010213
RAX: 0000000000000008 RBX: ffff888056910e00 RCX: ffffc9000c389000
RDX: 0000000000040000 RSI: ffffffff84682320 RDI: 0000000000000003
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff846821be R11: 0000000000000000 R12: 0000000000000046
R13: ffffffffffffff86 R14: 0000000000000001 R15: 0000000000000080
FS:  00007fa634217700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000008745c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 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:00007fa634217188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fff3eeb0bbf R14: 00007fa634217300 R15: 0000000000022000
Modules linked in:
---[ end trace 9b3682cb0dfd55d3 ]---
RIP: 0010:kill_pending_fw_fallback_reqs+0x22e/0x370 drivers/base/firmware_loader/fallback.c:116
Code: d2 0f 85 86 00 00 00 c7 43 78 03 00 00 00 48 8d 7b 20 e8 25 9f ef fc e8 d0 77 0d fd 4d 8d a5 c0 00 00 00 4c 89 e0 48 c1 e8 03 <80> 3c 28 00 75 46 49 8b 85 c0 00 00 00 4c 89 eb 48 2d c0 00 00 00
RSP: 0018:ffffc900091e77d0 EFLAGS: 00010213
RAX: 0000000000000008 RBX: ffff888056910e00 RCX: ffffc9000c389000
RDX: 0000000000040000 RSI: ffffffff84682320 RDI: 0000000000000003
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff846821be R11: 0000000000000000 R12: 0000000000000046
R13: ffffffffffffff86 R14: 0000000000000001 R15: 0000000000000080
FS:  00007fa634217700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3103c000 CR3: 000000008745c000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600