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WARNING in __i2c_transfer

Status: fixed on 2021/11/10 00:50
Subsystems: i2c
[Documentation on labels]
Reported-by: syzbot+ffb0b3ffa6cfbc7d7b3f@syzkaller.appspotmail.com
Fix commit: 71581562ee36 i2c: bail out early when RDWR parameters are wrong
First crash: 1141d, last: 897d
Cause bisection: introduced by (bisect log) :
commit f90cf6079bf67988f8b1ad1ade70fc89d0080905
Author: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Date: Fri Aug 21 12:58:47 2020 +0000

  media: vidtv: add a bridge driver

Crash: WARNING in __i2c_transfer (log)
Repro: C syz .config
  
▶ ▼ Discussions (12)
Title Replies (including bot) Last reply
[PATCH 4.19 000/425] 4.19.191-rc1 review 438 (438) 2021/06/24 10:04
[PATCH 5.10 000/289] 5.10.38-rc1 review 304 (304) 2021/05/27 04:25
[PATCH 5.4 000/141] 5.4.120-rc1 review 152 (152) 2021/05/20 08:31
[PATCH 5.11 000/329] 5.11.22-rc1 review 336 (336) 2021/05/18 21:20
[PATCH 5.12 000/363] 5.12.5-rc1 review 377 (377) 2021/05/18 14:35
[PATCH AUTOSEL 5.12 001/116] ath11k: fix thermal temperature read 119 (119) 2021/05/14 13:04
[PATCH AUTOSEL 5.11 001/104] ath11k: fix thermal temperature read 106 (106) 2021/05/06 00:14
[PATCH AUTOSEL 4.19 01/32] fs: dlm: fix debugfs dump 32 (32) 2021/05/05 16:40
[PATCH AUTOSEL 5.4 01/46] fs: dlm: fix debugfs dump 46 (46) 2021/05/05 16:38
[PATCH AUTOSEL 5.10 01/85] ath11k: fix thermal temperature read 85 (85) 2021/05/05 16:36
[PULL REQUEST] i2c for 5.13 2 (2) 2021/04/30 20:10
[syzbot] WARNING in __i2c_transfer 2 (4) 2021/03/12 11:46
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __i2c_transfer (2) i2c C done 337 843d 892d 20/26 fixed on 2022/03/08 16:11
▶ ▼ Last patch testing requests (2)
Created Duration User Patch Repo Result
2021/03/12 09:38 15m wsa@kernel.org patch upstream OK
2021/03/12 08:58 16m paskripkin@gmail.com https://linux.googlesource.com/linux/kernel/git/torvalds/linux refs/changes/77/9077/1 OK

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8406 at drivers/i2c/i2c-core-base.c:2021 __i2c_transfer+0xa87/0x17d0 drivers/i2c/i2c-core-base.c:2021
Modules linked in:
CPU: 0 PID: 8406 Comm: syz-executor613 Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__i2c_transfer+0xa87/0x17d0 drivers/i2c/i2c-core-base.c:2021
Code: 0f 94 c7 31 ff 44 89 fe e8 96 ba c2 fb 45 84 ff 0f 84 b3 fc ff ff e8 d8 b3 c2 fb e8 b2 5a 4f fb e9 a4 fc ff ff e8 c9 b3 c2 fb <0f> 0b 41 bc ea ff ff ff e9 2b fd ff ff e8 b7 b3 c2 fb 44 89 ee bf
RSP: 0018:ffffc900018cfd48 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000010 RCX: 0000000000000000
RDX: ffff88801e4e5340 RSI: ffffffff85b0ea97 RDI: 0000000000000003
RBP: ffff888020870b58 R08: 0000000000000000 R09: ffffffff8faa792f
R10: ffffffff85b0e048 R11: 1ffffffff1ed6964 R12: 0000000000000010
R13: 0000000000000000 R14: ffff888020870b78 R15: 0000000000000000
FS:  000000000226f300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcccc5096c0 CR3: 0000000012e13000 CR4: 0000000000350ef0
Call Trace:
 i2c_transfer+0x1e6/0x3e0 drivers/i2c/i2c-core-base.c:2112
 i2cdev_ioctl_rdwr+0x583/0x6a0 drivers/i2c/i2c-dev.c:297
 i2cdev_ioctl+0x46c/0x780 drivers/i2c/i2c-dev.c:453
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x443469
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffb0c53048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443469
RDX: 0000000020004480 RSI: 0000000000000707 RDI: 0000000000000003
RBP: 0000000000403010 R08: 00232d6332692f76 R09: 00000000004004a0
R10: 000000000000001f R11: 0000000000000246 R12: 00000000004030a0
R13: 0000000000000000 R14: 00000000004b1018 R15: 00000000004004a0

Crashes (2847):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/03/12 06:10 upstream 28806e4d9b97 429d8a6b .config console log report syz C ci-upstream-kasan-gce-root WARNING in __i2c_transfer
2021/10/26 09:02 upstream c2b43854aad9 c1132b49 .config console log report syz C ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/07/28 16:03 upstream 7d549995d4e0 17d6ab15 .config console log report syz C ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/05/13 07:44 upstream dbb5afad100a ed7d41c5 .config console log report syz C ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/05/08 14:44 upstream d2b6f8a17919 bc5434be .config console log report info ci-upstream-kasan-gce WARNING in __i2c_transfer
2021/05/08 13:55 upstream d2b6f8a17919 bc5434be .config console log report info ci-upstream-kasan-gce-smack-root WARNING in __i2c_transfer
2021/05/07 16:28 upstream d2b6f8a17919 f6da8120 .config console log report info ci-upstream-kasan-gce-root WARNING in __i2c_transfer
2021/05/06 23:36 upstream d2b6f8a17919 06585184 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in __i2c_transfer
2021/11/09 20:54 upstream d2f38a3c6507 59bcaf9a .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/09 08:09 upstream e851dfae4371 8ab17e57 .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/09 05:29 upstream e851dfae4371 8ab17e57 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/07 07:52 upstream 512b7931ad05 4c1be0be .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/06 21:16 upstream fe91c4725aee 4c1be0be .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/06 03:45 upstream fe91c4725aee 4c1be0be .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/05 02:10 upstream 7ddb58cb0eca 4c1be0be .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/05 01:11 upstream 7ddb58cb0eca 4c1be0be .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/04 22:21 upstream 7ddb58cb0eca 4c1be0be .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/04 14:58 upstream ce840177930f 4c1be0be .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/03 12:59 upstream 56d33754481f 17f3edd2 .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/03 05:50 upstream bfc484fe6abb 17f3edd2 .config console log report info ci-qemu-upstream-386 WARNING in __i2c_transfer
2021/11/02 03:49 upstream e66435936756 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/01 11:31 upstream 8bb7eca972ad 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/11/01 06:16 upstream 8bb7eca972ad 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/31 22:08 upstream 180eca540ae0 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/31 20:25 upstream 180eca540ae0 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/31 17:41 upstream 180eca540ae0 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/31 06:02 upstream 119c85055d86 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/31 05:42 upstream 119c85055d86 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/30 13:16 upstream a379fbbcb88b 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/30 07:15 upstream a379fbbcb88b 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/30 02:35 upstream a379fbbcb88b 098b5d53 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/29 13:42 upstream f25a5481af12 2353a3ec .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/29 13:34 upstream f25a5481af12 2353a3ec .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/29 01:59 upstream 411a44c24a56 be531bb4 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/28 13:29 upstream 1fc596a56b33 be531bb4 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/28 07:49 upstream 1fc596a56b33 be531bb4 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/28 02:37 upstream 1fc596a56b33 373bf66b .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/28 00:54 upstream 1fc596a56b33 373bf66b .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/27 16:02 upstream d25f27432f80 373bf66b .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/27 09:21 upstream d25f27432f80 d50eb50a .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/27 09:11 upstream d25f27432f80 d50eb50a .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/26 22:41 upstream 3906fe9bb7f1 d50eb50a .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/26 17:16 upstream 3906fe9bb7f1 d50eb50a .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/26 10:02 upstream c2b43854aad9 c1132b49 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/26 05:35 upstream c2b43854aad9 c1132b49 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/26 03:59 upstream c2b43854aad9 c1132b49 .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/25 21:11 upstream 87066fdd2e30 4f0000ee .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/25 17:11 upstream 87066fdd2e30 4f0000ee .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/25 01:53 upstream 6c62666d8879 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/25 00:19 upstream 6c62666d8879 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/24 22:47 upstream 6c62666d8879 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/24 16:00 upstream 9c0c4d24ac00 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/24 05:15 upstream 9c0c4d24ac00 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/24 02:29 upstream 9c0c4d24ac00 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/23 23:35 upstream 9c0c4d24ac00 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/23 09:49 upstream 64222515138e 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/10/23 06:59 upstream 64222515138e 282f03fb .config console log report info ci-upstream-kasan-gce-386 WARNING in __i2c_transfer
2021/09/21 23:41 upstream bf152b0b41dc 169724fe .config console log report info ci-qemu2-arm32 WARNING in __i2c_transfer
2021/03/11 12:13 upstream a74e6a014c9d c2ca1f2a .config console log report info ci-qemu2-arm32 WARNING in __i2c_transfer
2021/03/14 14:14 linux-next d98f554b318f 4a003785 .config console log report info ci-upstream-linux-next-kasan-gce-root WARNING in __i2c_transfer
* Struck through repros no longer work on HEAD.