syzbot


KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data

Status: auto-obsoleted due to no activity on 2024/04/06 09:15
Subsystems: afs net
[Documentation on labels]
Reported-by: syzbot+10a8b2c396f558269522@syzkaller.appspotmail.com
First crash: 524d, last: 88d

Sample crash report:
==================================================================
BUG: KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data

write to 0xffff88813c3ebcf4 of 4 bytes by task 20475 on cpu 0:
 rxrpc_decant_prepared_tx net/rxrpc/call_event.c:320 [inline]
 rxrpc_transmit_some_data+0x37d/0x600 net/rxrpc/call_event.c:350
 rxrpc_input_call_event+0x55d/0x1220 net/rxrpc/call_event.c:462
 rxrpc_io_thread+0x307/0x1d80 net/rxrpc/io_thread.c:461
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:243

read to 0xffff88813c3ebcf4 of 4 bytes by task 20472 on cpu 1:
 rxrpc_send_data+0x951/0x1960 net/rxrpc/sendmsg.c:401
 rxrpc_do_sendmsg+0xbf0/0xc80 net/rxrpc/sendmsg.c:735
 rxrpc_sendmsg+0x413/0x520 net/rxrpc/af_rxrpc.c:627
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x37c/0x4d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x1e9/0x270 net/socket.c:2667
 __do_sys_sendmsg net/socket.c:2676 [inline]
 __se_sys_sendmsg net/socket.c:2674 [inline]
 __x64_sys_sendmsg+0x46/0x50 net/socket.c:2674
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x00000000 -> 0x00000003

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 20472 Comm: syz-executor.2 Not tainted 6.8.0-rc6-syzkaller-00194-g17ba56605bfd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
==================================================================

Crashes (69):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/02 09:15 upstream 17ba56605bfd 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/03/02 01:33 upstream 17ba56605bfd 83acf9e0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/27 02:12 upstream d206a76d7d27 da36a36b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/19 22:31 upstream b401b621758e 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/17 15:22 upstream c1ca10ceffbb 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/15 22:36 upstream 4f5e5092fdbf fd39cf6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/14 14:46 upstream 7e90b5c295ec d902085f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/12 22:20 upstream 716f4aaa7b48 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/02/05 23:26 upstream 54be6c6c5ae8 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/01/28 22:40 upstream 4854cf9c61d0 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/01/26 05:28 upstream ecb1b8288dc7 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/01/22 17:17 upstream 6613476e225e 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/01/16 00:50 upstream 052d534373b7 2a7bcc7f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2024/01/02 01:26 upstream 610a9b8f49fb fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/25 08:36 upstream 861deac3b092 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/24 00:05 upstream 3f82f1c3a036 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/21 13:36 upstream a4aebe936554 4f9530a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/21 06:02 upstream 1a44b0073b92 de21eb89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/15 18:42 upstream 3f7168591ebf 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/14 07:53 upstream 5bd7ef53ffe5 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/11 07:16 upstream a39b6ac3781d 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/10 16:48 upstream c527f5606aa5 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/12/09 16:51 upstream f2e8a57ee903 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/11/25 15:25 upstream 0f5cc96c367f 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/11/23 02:08 upstream 9b6de136b5f0 03e12510 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/11/14 21:34 upstream 9bacdd8996c7 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/11/01 08:42 upstream 89ed67ef126c 69904c9f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/10/11 18:36 upstream 1c8b86a3799f 83165b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/10/08 05:24 upstream 59f3fd30af35 5e837c76 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/10/06 23:31 upstream 7de25c855b63 ea12a918 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/10/02 19:33 upstream 8a749fd1a872 50b20e75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/30 23:47 upstream 3b517966c561 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/30 03:21 upstream 71e58659bfc0 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/29 06:43 upstream 9ed22ae6be81 d265efd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/25 05:54 upstream 8a511e7efc5a 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/24 21:01 upstream 3aba70aed91f 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/07 15:35 upstream 7ba2090ca64e 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/09/01 18:56 upstream 99d99825fc07 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/30 03:54 upstream f97e18a3f2fb ce731e62 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/25 07:44 upstream 4f9e7fabf864 49be837e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/24 17:06 upstream 93f5de5f648d 49be837e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/23 13:51 upstream 89bf6209cad6 b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/23 06:12 upstream 53663f4103ff b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/21 20:30 upstream f7757129e3de 6b415825 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/17 08:36 upstream 4853c74bd7ab 74b106b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/16 07:45 upstream d4f8e13b0614 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/08/14 15:58 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/07/22 04:41 upstream f7e3a1bafdea abdf9bae .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/07/17 01:51 upstream 20edcec23f92 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/07/15 17:48 upstream b6e6cc1f78c7 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/07/12 06:57 upstream 3f01e9fed845 2f19aa4f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/07/02 17:43 upstream 995b406c7e97 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/06/29 16:25 upstream 3a8a670eeeaa 134ddc02 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/06/28 01:37 upstream 04fc8904d5d1 4cd5bb25 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/06/15 15:10 upstream b6dad5178cea 90d4044e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/06/09 09:55 upstream 25041a4c02c7 058b3a5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/06/05 06:12 upstream 9561de3a55be a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/05/26 19:10 upstream 0d85b27b0cc6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/05/19 02:43 upstream 2d1bcbc6cd70 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/04/22 07:23 upstream 8e41e0a57566 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/04/20 16:23 upstream cb0856346a60 a219f34e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/04/19 16:33 upstream 789b4a41c247 94b4184e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/04/09 04:09 upstream a79d5c76f705 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/04/07 18:26 upstream f2afccfefe7b f7ba566d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/04/01 09:21 upstream 5a57b48fdfcb f325deb0 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/03/09 19:06 upstream 6a98c9cae232 f08b59ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/03/01 07:09 upstream e492250d5252 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2023/01/23 00:39 upstream 2475bf0250de cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
2022/12/22 12:50 upstream 0a924817d2ed 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in rxrpc_send_data / rxrpc_transmit_some_data
* Struck through repros no longer work on HEAD.