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 PTI KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 UID: 0 PID: 5865 Comm: syz-executor265 Not tainted 6.17.0-rc1-next-20250814-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:su3000_i2c_transfer+0x2e3/0x1040 drivers/media/usb/dvb-usb/dw2102.c:752 Code: 0f b6 18 49 83 c7 08 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 ea 95 33 fa 4d 8b 37 49 ff c6 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 e6 08 00 00 41 88 1e 48 8b 44 24 48 42 RSP: 0018:ffffc90003fafaa8 EFLAGS: 00010202 RAX: 0000000000000002 RBX: 0000000000000010 RCX: c33134134f4ffd00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc90003faf7c7 R09: 1ffff920007f5ef8 R10: dffffc0000000000 R11: fffff520007f5ef9 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000011 R15: ffff8880272cfca8 FS: 000055556fb57380(0000) GS:ffff8881257d6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ddcdec7f40 CR3: 000000007241e000 CR4: 00000000003526f0 Call Trace: __i2c_transfer+0x874/0x2170 drivers/i2c/i2c-core-base.c:-1 i2c_transfer+0x25b/0x3a0 drivers/i2c/i2c-core-base.c:2320 i2cdev_ioctl_rdwr+0x460/0x740 drivers/i2c/i2c-dev.c:306 i2cdev_ioctl+0x64b/0x7f0 drivers/i2c/i2c-dev.c:467 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa05ffaee99 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc4ffbbaf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fa05ffaee99 RDX: 0000200000000a40 RSI: 0000000000000707 RDI: 0000000000000004 RBP: 00007fa060022610 R08: 00232d6332692f76 R09: 00007ffc4ffbbcc8 R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc4ffbbcb8 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:su3000_i2c_transfer+0x2e3/0x1040 drivers/media/usb/dvb-usb/dw2102.c:752 Code: 0f b6 18 49 83 c7 08 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 ea 95 33 fa 4d 8b 37 49 ff c6 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 e6 08 00 00 41 88 1e 48 8b 44 24 48 42 RSP: 0018:ffffc90003fafaa8 EFLAGS: 00010202 RAX: 0000000000000002 RBX: 0000000000000010 RCX: c33134134f4ffd00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc90003faf7c7 R09: 1ffff920007f5ef8 R10: dffffc0000000000 R11: fffff520007f5ef9 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000011 R15: ffff8880272cfca8 FS: 000055556fb57380(0000) GS:ffff8881257d6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ddcdec7f40 CR3: 000000007241e000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 0f b6 18 movzbl (%rax),%ebx 3: 49 83 c7 08 add $0x8,%r15 7: 4c 89 f8 mov %r15,%rax a: 48 c1 e8 03 shr $0x3,%rax e: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 13: 74 08 je 0x1d 15: 4c 89 ff mov %r15,%rdi 18: e8 ea 95 33 fa call 0xfa339607 1d: 4d 8b 37 mov (%r15),%r14 20: 49 ff c6 inc %r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 e6 08 00 00 jne 0x91d 37: 41 88 1e mov %bl,(%r14) 3a: 48 8b 44 24 48 mov 0x48(%rsp),%rax 3f: 42 rex.X