syzbot


WARNING in kcov_remote_start (5)

Status: fixed on 2024/10/22 14:56
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+2388cdaeb6b10f0c13ac@syzkaller.appspotmail.com
Fix commit: 7d4df2dad312 kcov: properly check for softirq context 9313d139aa25 usb: gadget: dummy_hcd: execute hrtimer callback in softirq context
First crash: 151d, last: 47d
Discussions (4)
Title Replies (including bot) Last reply
[PATCH] usb: gadget: dummy_hcd: execute hrtimer callback in softirq context 9 (9) 2024/09/04 01:34
[PATCH RESEND] usb: gadget: dummy_hcd: execute hrtimer callback in softirq context 1 (1) 2024/09/04 01:30
[PATCH] kcov: properly check for softirq context 3 (3) 2024/07/29 14:49
[syzbot] [usb?] WARNING in kcov_remote_start (5) 0 (1) 2024/07/14 08:47
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in kcov_remote_start 2 32d 67d 0/3 upstream: reported on 2024/10/02 09:28
upstream WARNING in kcov_remote_start (4) usb 107983 151d 182d 26/28 fixed on 2024/07/10 08:24
upstream WARNING in kcov_remote_start (2) usb C 1153 1923d 1923d 0/28 closed as invalid on 2019/09/04 14:27
upstream WARNING in kcov_remote_start (3) usb 265513 186d 255d 25/28 fixed on 2024/06/05 13:52
upstream WARNING in kcov_remote_start usb C 655 1923d 1923d 0/28 closed as invalid on 2019/09/03 16:37
upstream WARNING in kcov_remote_start (6) wireless 16 3h57m 34d 0/28 upstream: reported on 2024/11/04 21:25

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5450 at kernel/kcov.c:872 kcov_remote_start+0x542/0x7d0 kernel/kcov.c:872
Modules linked in:
CPU: 0 UID: 0 PID: 5450 Comm: syz.3.42 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:kcov_remote_start+0x542/0x7d0 kernel/kcov.c:872
Code: 4c 89 ff be 03 00 00 00 e8 db 6c 1f 03 e9 04 fb ff ff e8 31 f2 28 0a 41 f7 c6 00 02 00 00 0f 84 f2 fa ff ff e9 7f fc ff ff 90 <0f> 0b 90 e8 66 0f 29 0a 89 c0 48 c7 c7 c0 d4 02 00 48 03 3c c5 50
RSP: 0018:ffffc90004556b50 EFLAGS: 00010002
RAX: 0000000080000200 RBX: ffff8880435c1e00 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffffffff8c0adcc0 RDI: ffffffff8c602ea0
RBP: 0000000000000000 R08: ffffffff9429386f R09: 1ffffffff285270d
R10: dffffc0000000000 R11: fffffbfff285270e R12: ffffffff8194e137
R13: ffff888022392a00 R14: 0000000000000246 R15: ffff8880b862d4c0
FS:  00007f2dadb466c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5a2b8bd7ad CR3: 000000002936a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kcov_remote_start_common include/linux/kcov.h:50 [inline]
 ieee80211_rx_list+0x799/0x3780 net/mac80211/rx.c:5444
 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485
 ieee80211_rx include/net/mac80211.h:5138 [inline]
 ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439
 ieee80211_stop_device+0x3f/0xf0 net/mac80211/util.c:1587
 ieee80211_do_stop+0x1cb5/0x2300 net/mac80211/iface.c:721
 ieee80211_stop+0x436/0x4a0 net/mac80211/iface.c:780
 __dev_close_many+0x219/0x300 net/core/dev.c:1560
 dev_close_many+0x24e/0x4c0 net/core/dev.c:1585
 dev_close+0x1c0/0x2c0 net/core/dev.c:1611
 nl80211_del_interface+0xd5/0x140 net/wireless/nl80211.c:4521
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2dacd7dff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2dadb46038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2dacf35f80 RCX: 00007f2dacd7dff9
RDX: 0000000000000000 RSI: 0000000020000d40 RDI: 0000000000000003
RBP: 00007f2dacdf0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2dacf35f80 R15: 00007ffd911bd9c8
 </TASK>

Crashes (4243):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/22 05:15 upstream c2ee9f594da8 a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/10/19 10:49 upstream 3d5ad2d4eca3 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/10/16 03:01 upstream 2f87d0916ce0 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/10/15 20:35 upstream eca631b8fe80 14943bb8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/10/11 22:44 upstream 9e4c6c1ad9a1 cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcov_remote_start
2024/10/10 15:53 upstream d3d1556696c1 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/10/09 13:22 upstream 75b607fab38d 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcov_remote_start
2024/10/07 21:01 upstream 8cf0b93919e1 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcov_remote_start
2024/09/28 19:13 upstream 3efc57369a0c ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/09/24 09:31 upstream abf2050f51fd 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/09/23 22:33 upstream de5cb0dcb74c 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/09/23 10:36 upstream de5cb0dcb74c 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/09/22 16:57 upstream 88264981f208 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/09/21 15:50 upstream 1868f9d0260e 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/09/13 05:15 upstream 196145c606d0 73e8a465 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/09/04 19:54 upstream c7fb1692dc01 9d47f20a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/08/30 00:58 upstream d5d547aa7b51 54fe8471 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/17 11:41 upstream e5fa841af679 dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/09 16:16 upstream ee9a43b7cfe2 a9e7e9e3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/08/09 00:24 upstream cf6d429eb656 61405512 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/08/08 20:25 upstream 6a0e38264012 61405512 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/08/08 19:06 upstream 6a0e38264012 61405512 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 17:53 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/08/08 17:30 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/08/08 16:02 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 14:49 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 13:40 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 12:02 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcov_remote_start
2024/08/08 10:10 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 09:48 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 06:39 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/08 05:33 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/08/08 04:32 upstream 6a0e38264012 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/08/07 23:11 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/07 22:03 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcov_remote_start
2024/08/07 18:38 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcov_remote_start
2024/08/07 16:15 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcov_remote_start
2024/08/07 14:58 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/07/14 08:37 upstream d0d0cd380055 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcov_remote_start
2024/10/16 06:11 upstream 2f87d0916ce0 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in kcov_remote_start
2024/09/25 00:10 upstream 97d8894b6f4c 5643e0e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in kcov_remote_start
2024/08/08 07:47 upstream 6a0e38264012 de12cf65 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in kcov_remote_start
2024/08/08 01:28 upstream 6a0e38264012 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in kcov_remote_start
2024/08/07 23:47 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in kcov_remote_start
2024/08/07 19:43 upstream d4560686726f 7b2f2f35 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in kcov_remote_start
2024/08/26 01:43 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcov_remote_start
2024/08/08 03:41 upstream 6a0e38264012 de12cf65 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcov_remote_start
2024/08/08 02:39 upstream 6a0e38264012 de12cf65 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in kcov_remote_start
2024/08/08 02:29 upstream 6a0e38264012 de12cf65 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in kcov_remote_start
2024/10/06 22:40 net 9234a2549cb6 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in kcov_remote_start
2024/10/02 20:54 linux-next fe2173353674 a4c7fd36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcov_remote_start
2024/09/30 17:18 linux-next cea5425829f7 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcov_remote_start
2024/07/10 08:45 linux-next 82d01fe6ee52 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcov_remote_start
2024/08/13 23:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8867bbd4a056 f21a18ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in kcov_remote_start
2024/08/13 21:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8867bbd4a056 f21a18ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in kcov_remote_start
2024/08/13 19:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8867bbd4a056 f21a18ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in kcov_remote_start
* Struck through repros no longer work on HEAD.