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KCSAN: data-race in can_rcv_filter / can_rcv_filter (9)

Status: auto-obsoleted due to no activity on 2024/06/30 06:15
Subsystems: can
[Documentation on labels]
First crash: 357d, last: 297d
▶ ▼ Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (11) can 5 19d 10d 0/28 moderation: reported on 2025/03/09 10:42
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter can 3 1874d 1886d 0/28 auto-closed as invalid on 2020/04/11 00:08
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (2) can 1 1470d 1470d 0/28 auto-closed as invalid on 2021/04/14 07:16
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (8) can 9 623d 740d 0/28 auto-obsoleted due to no activity on 2023/08/09 14:18
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (5) can 1 1046d 1046d 0/28 auto-closed as invalid on 2022/06/12 10:04
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (7) can 3 815d 846d 0/28 auto-obsoleted due to no activity on 2023/02/28 05:31
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (4) can 6 1082d 1148d 0/28 auto-closed as invalid on 2022/05/07 18:40
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (10) can 1 153d 153d 0/28 auto-obsoleted due to no activity on 2024/11/22 01:30
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (3) can 2 1191d 1191d 0/28 auto-closed as invalid on 2022/01/19 00:57
upstream KCSAN: data-race in can_rcv_filter / can_rcv_filter (6) can 7 892d 969d 0/28 auto-obsoleted due to no activity on 2022/11/13 19:42

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

read-write to 0xffff888101aba1a8 of 8 bytes by interrupt on cpu 0:
 deliver net/can/af_can.c:573 [inline]
 can_rcv_filter+0x237/0x4c0 net/can/af_can.c:606
 can_receive+0x182/0x1f0 net/can/af_can.c:663
 can_rcv+0xe7/0x180 net/can/af_can.c:687
 __netif_receive_skb_one_core net/core/dev.c:5624 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5738
 process_backlog+0x21d/0x3c0 net/core/dev.c:6067
 __napi_poll+0x63/0x3c0 net/core/dev.c:6721
 napi_poll net/core/dev.c:6790 [inline]
 net_rx_action+0x324/0x740 net/core/dev.c:6906
 handle_softirqs+0xc3/0x280 kernel/softirq.c:554
 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:928
 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff888101aba1a8 of 8 bytes by interrupt on cpu 1:
 deliver net/can/af_can.c:573 [inline]
 can_rcv_filter+0x237/0x4c0 net/can/af_can.c:606
 can_receive+0x182/0x1f0 net/can/af_can.c:663
 can_rcv+0xe7/0x180 net/can/af_can.c:687
 __netif_receive_skb_one_core net/core/dev.c:5624 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5738
 process_backlog+0x21d/0x3c0 net/core/dev.c:6067
 __napi_poll+0x63/0x3c0 net/core/dev.c:6721
 napi_poll net/core/dev.c:6790 [inline]
 net_rx_action+0x324/0x740 net/core/dev.c:6906
 handle_softirqs+0xc3/0x280 kernel/softirq.c:554
 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:928
 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x000000000000013a -> 0x000000000000013b

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 23 Comm: ksoftirqd/1 Not tainted 6.9.0-syzkaller-12333-g54f71b0369c9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
==================================================================

Crashes (9):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/26 06:08 upstream 54f71b0369c9 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/05/18 10:38 upstream 7ee332c9f12b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/04/27 09:27 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/04/09 02:17 upstream 20cb38a7af88 f3234354 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/04/09 02:15 upstream 20cb38a7af88 f3234354 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/04/05 02:08 upstream c88b9b4cde17 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/04/04 17:06 upstream c85af715cac0 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/03/28 10:52 upstream 8d025e2092e2 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
2024/03/27 07:42 upstream 7033999ecd7b 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in can_rcv_filter / can_rcv_filter
* Struck through repros no longer work on HEAD.