syzbot


WARNING in dtv5100_i2c_msg/usb_submit_urb

Status: upstream: reported C repro on 2025/05/22 06:36
Subsystems: usb
[Documentation on labels]
Reported-by: syzbot+0335df380edd9bd3ff70@syzkaller.appspotmail.com
First crash: 355d, last: 9h32m
Cause bisection: failed (error log, bisect log)
  
Discussions (3)
Title Replies (including bot) Last reply
[PATCH v2] dvb-usb: dtv5100: rewrite i2c message usb_control send/recv 2 (2) 2025/11/24 16:49
[PATCH] dvb-usb: dtv5100: rewrite i2c message usb_control send/recv 4 (4) 2025/11/21 13:07
[syzbot] [usb?] WARNING in dtv5100_i2c_msg/usb_submit_urb 2 (4) 2025/05/28 20:16
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in dtv5100_i2c_msg/usb_submit_urb origin:upstream -1 C error 2 69d 70d 0/3 upstream: reported C repro on 2026/02/27 05:36
linux-6.6 WARNING in dtv5100_i2c_msg/usb_submit_urb origin:upstream -1 C error 11 44d 265d 0/2 upstream: reported C repro on 2025/08/15 23:44
linux-6.1 WARNING in dtv5100_i2c_msg/usb_submit_urb origin:upstream -1 C error 18 6d18h 218d 0/3 upstream: reported C repro on 2025/10/01 22:05

Sample crash report:
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0
WARNING: drivers/usb/core/urb.c:413 at usb_submit_urb+0x1053/0x18b0 drivers/usb/core/urb.c:411, CPU#1: syz.0.17/5986
Modules linked in:
CPU: 1 UID: 0 PID: 5986 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:usb_submit_urb+0x1115/0x18b0 drivers/usb/core/urb.c:411
Code: 00 00 00 00 00 fc ff df 0f b6 44 05 00 84 c0 0f 85 91 05 00 00 45 0f b6 45 00 48 8b 7c 24 18 48 8b 74 24 10 4c 89 fa 44 89 f1 <67> 48 0f b9 3a 49 bf 00 00 00 00 00 fc ff df e9 c1 f2 ff ff 89 e9
RSP: 0000:ffffc900034a76e8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888077dd6b00 RCX: 0000000080000280
RDX: ffff888020ef5ac0 RSI: ffffffff8c7f2a00 RDI: ffffffff901f15d0
RBP: 1ffff110042543f8 R08: 00000000000000c0 R09: 0000000000000000
R10: ffffc900034a77e0 R11: fffff52000694f08 R12: ffff8880339ee100
R13: ffff8880212a1fc0 R14: 0000000080000280 R15: ffff888020ef5ac0
FS:  0000555586ffa500(0000) GS:ffff888125554000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1322357b38 CR3: 0000000033de4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 usb_start_wait_urb+0x13f/0x5b0 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x234/0x3e0 drivers/usb/core/message.c:167
 dtv5100_i2c_msg+0x231/0x2f0 drivers/media/usb/dvb-usb/dtv5100.c:65
 dtv5100_i2c_xfer+0x1a4/0x3c0 drivers/media/usb/dvb-usb/dtv5100.c:91
 __i2c_transfer+0x79a/0x2020 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x1cc/0x2d0 drivers/i2c/i2c-core-base.c:2317
 i2c_transfer_buffer_flags+0x10d/0x1a0 drivers/i2c/i2c-core-base.c:2345
 i2c_master_send include/linux/i2c.h:109 [inline]
 i2cdev_write+0x113/0x1e0 drivers/i2c/i2c-dev.c:183
 do_loop_readv_writev fs/read_write.c:852 [inline]
 vfs_writev+0x4bd/0x990 fs/read_write.c:1061
 do_writev+0x154/0x2e0 fs/read_write.c:1105
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f762979c819
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:00007ffe298d60b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f7629a15fa0 RCX: 00007f762979c819
RDX: 0000000000000001 RSI: 0000200000000500 RDI: 0000000000000004
RBP: 00007f7629832c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7629a15fac R14: 00007f7629a15fa0 R15: 00007f7629a15fa0
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 fc                	add    %bh,%ah
   6:	ff                   	lcall  (bad)
   7:	df 0f                	fisttps (%rdi)
   9:	b6 44                	mov    $0x44,%dh
   b:	05 00 84 c0 0f       	add    $0xfc08400,%eax
  10:	85 91 05 00 00 45    	test   %edx,0x45000005(%rcx)
  16:	0f b6 45 00          	movzbl 0x0(%rbp),%eax
  1a:	48 8b 7c 24 18       	mov    0x18(%rsp),%rdi
  1f:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  24:	4c 89 fa             	mov    %r15,%rdx
  27:	44 89 f1             	mov    %r14d,%ecx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  36:	fc ff df
  39:	e9 c1 f2 ff ff       	jmp    0xfffff2ff
  3e:	89 e9                	mov    %ebp,%ecx

Crashes (550):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/04/06 08:15 upstream 1791c390149f 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/06 04:24 upstream 1791c390149f 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/11/28 03:56 upstream 765e56e41a5a d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/05/27 02:01 upstream 0ff41df1cb26 874a1386 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/27 10:40 linux-next 66ba480978ce 50cdcaa1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/12/28 12:56 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/12/27 17:38 linux-next cc3aa43b44bd d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/12/17 21:18 linux-next 12b95d29eb97 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/10/03 15:04 linux-next 47a8d4b89844 49379ee0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/08/16 05:48 linux-next 931e46dcbc7e 1804e95e .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/06 12:35 upstream 9207d47f966b 26da2c66 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/06 08:38 upstream 9207d47f966b 26da2c66 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/06 07:25 upstream 9207d47f966b 26da2c66 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/05 20:23 upstream a293ec25d59d 06e69a27 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/01 03:41 upstream 08d0d3466664 753c55b9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/29 08:42 upstream dca922e019dd 95008c03 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/24 19:35 upstream dd6c438c3e64 1c2b9291 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/23 10:21 upstream 2a4c0c11c019 b10da5ec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/11 05:51 upstream 7c6c4ed80b87 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/07 18:17 upstream bfe62a454542 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/07 10:03 upstream bfe62a454542 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/03 22:06 upstream 631919fb12fe 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/30 09:16 upstream f242ac4a0944 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/29 16:45 upstream cbfffcca2bf0 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/27 19:16 upstream 46b513250491 74a13a23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/26 06:13 upstream d2a43e7f89da c6143aac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/26 02:38 upstream d2a43e7f89da c6143aac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/23 02:57 upstream 8d8bd2a5aa98 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/22 19:07 upstream 8d8bd2a5aa98 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/22 03:00 upstream 113ae7b4decc 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/17 03:25 upstream 2d1373e4246d 0737c18f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2025/05/18 06:33 upstream 5723cc3450bc f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/07 22:44 upstream 19cbc75c56c0 e358bca5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/05 22:43 upstream a293ec25d59d 06e69a27 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/05 19:52 upstream a293ec25d59d 06e69a27 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/05 15:36 upstream a293ec25d59d 06e69a27 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/05 07:17 upstream c7e4e4d5f7dc a898ba9c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/05 06:02 upstream c7e4e4d5f7dc a898ba9c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/04 10:45 upstream 6d35786de281 85f1bcf2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/03 18:12 upstream 66edb901bf87 a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/22 09:52 upstream 6596a02b2078 0b6ab7ec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/25 21:52 upstream bbeb83d3182a 4367a094 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/23 14:45 upstream c369299895a5 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/03 10:54 upstream 66edb901bf87 a0d91488 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/05/01 08:33 upstream 26fd6bff2c05 753c55b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/29 00:26 upstream dca922e019dd 95008c03 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/28 07:09 upstream 3b3bea6d4b9c ce741359 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/28 05:40 upstream 3b3bea6d4b9c ce741359 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/26 01:35 upstream 897d54018cc9 9c2d0995 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/25 08:50 upstream 892c894b4ba4 9c2d0995 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/20 17:56 upstream c1f49dea2b8f e65da4ee .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/16 07:45 upstream 40286d6379aa df15c5f3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/06 19:53 upstream 591cd656a1bf 4440e7c2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/06 16:49 upstream 591cd656a1bf 4440e7c2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/06 00:39 upstream 1791c390149f 4440e7c2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/04 21:12 upstream 3aae9383f42f 4440e7c2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/29 04:16 upstream cbfffcca2bf0 b5ceaad2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/25 19:14 upstream bbeb83d3182a 4367a094 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/25 07:55 upstream 24f9515de877 35e4ff71 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/23 21:00 upstream c369299895a5 4933dba2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/02/28 21:53 upstream 2f9339c052bd 43249bac .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/13 18:54 upstream 26ff969926a0 9530ccf9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/30 21:14 linux-next b9303e6bff70 753c55b9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/02 08:57 linux-next bd0f139e5fc1 0cb124d5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/04/02 05:23 linux-next bd0f139e5fc1 0cb124d5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/24 15:08 linux-next 09c0f7f1bcdb 74e70d19 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/23 17:16 linux-next 785f0eb2f85d 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in dtv5100_i2c_msg/usb_submit_urb
2026/03/22 22:13 linux-next 785f0eb2f85d 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in dtv5100_i2c_msg/usb_submit_urb
* Struck through repros no longer work on HEAD.