Oops: general protection fault, probably for non-canonical address 0xdffffc0000000350: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000000001a80-0x0000000000001a87]
CPU: 1 UID: 0 PID: 27957 Comm: v4l_id Not tainted 6.12.0-rc6-syzkaller-00103-g226ff2e681d0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:norm_maxh drivers/media/usb/em28xx/em28xx-video.c:149 [inline]
RIP: 0010:em28xx_resolution_set.isra.0+0xe8/0x7a0 drivers/media/usb/em28xx/em28xx-video.c:317
Code: 0f 85 33 06 00 00 44 0f b6 a3 3c 01 00 00 48 8d bd 80 1a 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 41 83 e4 10 <80> 3c 02 00 0f 85 7f 06 00 00 48 8b 85 80 1a 00 00 31 ff 44 89 e6
RSP: 0018:ffffc900048777d8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88813a508000 RCX: ffffffff85302473
RDX: 0000000000000350 RSI: ffffffff8530029d RDI: 0000000000001a80
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8ee4f868 R12: 0000000000000000
R13: ffff88813954c788 R14: ffff88813a50813c R15: 0000000000000000
FS: 00007f5bf61eec80(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f961e1c7a8c CR3: 0000000111f52000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
em28xx_v4l2_open+0x5bd/0x7e0 drivers/media/usb/em28xx/em28xx-video.c:2168
v4l2_open+0x222/0x490 drivers/media/v4l2-core/v4l2-dev.c:427
chrdev_open+0x237/0x6a0 fs/char_dev.c:414
do_dentry_open+0x6cb/0x1390 fs/open.c:958
vfs_open+0x82/0x3f0 fs/open.c:1088
do_open fs/namei.c:3774 [inline]
path_openat+0x1e6a/0x2d60 fs/namei.c:3933
do_filp_open+0x1dc/0x430 fs/namei.c:3960
do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5bf63199a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe10863030 EFLAGS: 00000246
ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffe10863248 RCX: 00007f5bf63199a4
RDX: 0000000000000000 RSI: 00007ffe10864f23 RDI: 00000000ffffff9c
RBP: 00007ffe10864f23 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe10863260 R14: 0000557b318f8670 R15: 00007f5bf6768a80
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:norm_maxh drivers/media/usb/em28xx/em28xx-video.c:149 [inline]
RIP: 0010:em28xx_resolution_set.isra.0+0xe8/0x7a0 drivers/media/usb/em28xx/em28xx-video.c:317
Code: 0f 85 33 06 00 00 44 0f b6 a3 3c 01 00 00 48 8d bd 80 1a 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 41 83 e4 10 <80> 3c 02 00 0f 85 7f 06 00 00 48 8b 85 80 1a 00 00 31 ff 44 89 e6
RSP: 0018:ffffc900048777d8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88813a508000 RCX: ffffffff85302473
RDX: 0000000000000350 RSI: ffffffff8530029d RDI: 0000000000001a80
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8ee4f868 R12: 0000000000000000
R13: ffff88813954c788 R14: ffff88813a50813c R15: 0000000000000000
FS: 00007f5bf61eec80(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f961e1c7a8c CR3: 0000000111f52000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 0f 85 33 06 00 00 jne 0x639
6: 44 0f b6 a3 3c 01 00 movzbl 0x13c(%rbx),%r12d
d: 00
e: 48 8d bd 80 1a 00 00 lea 0x1a80(%rbp),%rdi
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 89 fa mov %rdi,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
26: 41 83 e4 10 and $0x10,%r12d
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 7f 06 00 00 jne 0x6b3
34: 48 8b 85 80 1a 00 00 mov 0x1a80(%rbp),%rax
3b: 31 ff xor %edi,%edi
3d: 44 89 e6 mov %r12d,%esi