dvb-usb: bulk message failed: -22 (1/0) dw2102: i2c transfer failed. Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 UID: 0 PID: 7150 Comm: syz.2.307 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:su3000_i2c_transfer+0x571/0xd90 drivers/media/usb/dvb-usb/dw2102.c:752 Code: 6b 08 83 e2 07 0f b6 00 38 d0 7f 08 84 c0 0f 85 e9 06 00 00 48 8d 7d 01 45 0f b6 77 02 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 <42> 0f b6 04 20 38 d0 7f 08 84 c0 0f 85 b8 06 00 00 49 8d 7f 03 44 RSP: 0018:ffffc90003387c10 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff88802a708500 RCX: ffffc9000d031000 RDX: 0000000000000001 RSI: ffffffff88003ac7 RDI: 0000000000000011 RBP: 0000000000000010 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888075de9a02 R14: 0000000000000010 R15: ffff888075de9a00 FS: 00007f4bbf6c66c0(0000) GS:ffff88812434a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000286030 CR3: 0000000042d54000 CR4: 00000000003526f0 Call Trace: __i2c_transfer+0x5d9/0x17f0 drivers/i2c/i2c-core-base.c:2261 i2c_transfer+0x15f/0x380 drivers/i2c/i2c-core-base.c:2317 i2cdev_ioctl_rdwr+0x3ec/0x700 drivers/i2c/i2c-dev.c:306 i2cdev_ioctl+0x19d/0x830 drivers/i2c/i2c-dev.c:467 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4bbe79c629 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4bbf6c6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4bbea15fa0 RCX: 00007f4bbe79c629 RDX: 0000200000000a40 RSI: 0000000000000707 RDI: 0000000000000004 RBP: 00007f4bbe832b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4bbea16038 R14: 00007f4bbea15fa0 R15: 00007ffe690afa48 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:su3000_i2c_transfer+0x571/0xd90 drivers/media/usb/dvb-usb/dw2102.c:752 Code: 6b 08 83 e2 07 0f b6 00 38 d0 7f 08 84 c0 0f 85 e9 06 00 00 48 8d 7d 01 45 0f b6 77 02 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 <42> 0f b6 04 20 38 d0 7f 08 84 c0 0f 85 b8 06 00 00 49 8d 7f 03 44 RSP: 0018:ffffc90003387c10 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff88802a708500 RCX: ffffc9000d031000 RDX: 0000000000000001 RSI: ffffffff88003ac7 RDI: 0000000000000011 RBP: 0000000000000010 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888075de9a02 R14: 0000000000000010 R15: ffff888075de9a00 FS: 00007f4bbf6c66c0(0000) GS:ffff88812434a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9f555e82f8 CR3: 0000000042d54000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 6b 08 83 imul $0xffffff83,(%rax),%ecx 3: e2 07 loop 0xc 5: 0f b6 00 movzbl (%rax),%eax 8: 38 d0 cmp %dl,%al a: 7f 08 jg 0x14 c: 84 c0 test %al,%al e: 0f 85 e9 06 00 00 jne 0x6fd 14: 48 8d 7d 01 lea 0x1(%rbp),%rdi 18: 45 0f b6 77 02 movzbl 0x2(%r15),%r14d 1d: 48 89 f8 mov %rdi,%rax 20: 48 89 fa mov %rdi,%rdx 23: 48 c1 e8 03 shr $0x3,%rax 27: 83 e2 07 and $0x7,%edx * 2a: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2f: 38 d0 cmp %dl,%al 31: 7f 08 jg 0x3b 33: 84 c0 test %al,%al 35: 0f 85 b8 06 00 00 jne 0x6f3 3b: 49 8d 7f 03 lea 0x3(%r15),%rdi 3f: 44 rex.R