bisecting fixing commit since 3dbdb38e286903ec220aaf1fb29a8d94297da246 building syzkaller on 8f5a7b8cde529e0a19a53f79bdf9c6cad306827b testing commit 3dbdb38e286903ec220aaf1fb29a8d94297da246 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1 kernel signature: 8481f9b2f2a7ab11d955c97afbc70c98b55326b531dbb64e72a19810026b3ae0 run #0: basic kernel testing failed: BUG: sleeping function called from invalid context in stack_depot_save run #1: basic kernel testing failed: BUG: sleeping function called from invalid context in stack_depot_save run #2: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #3: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #4: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #5: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #6: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #7: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #8: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #9: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #10: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #11: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #12: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #13: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #14: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #15: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #16: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #17: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #18: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb run #19: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb testing current HEAD ba31f97d43be41ca99ab72a6131d7c226306865f testing commit ba31f97d43be41ca99ab72a6131d7c226306865f compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1 kernel signature: da690622c5e433a0eae04444028916f460653a7b53b9461eabaeecde98763992 all runs: crashed: WARNING in bcm5974_start_traffic/usb_submit_urb revisions tested: 2, total time: 20m26.084003364s (build: 13m4.559969496s, test: 6m53.335722605s) the crash still happens on HEAD commit msg: Merge tag 'for-linus-5.14-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip crash: WARNING in bcm5974_start_traffic/usb_submit_urb ------------[ cut here ]------------ usb 6-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 1 PID: 10214 at drivers/usb/core/urb.c:502 usb_submit_urb+0xb07/0x1680 drivers/usb/core/urb.c:502 Modules linked in: CPU: 1 PID: 10214 Comm: systemd-udevd Not tainted 5.14.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:usb_submit_urb+0xb07/0x1680 drivers/usb/core/urb.c:502 Code: 4c 24 18 89 4c 24 08 44 89 04 24 e8 13 81 21 ff 44 8b 04 24 4c 89 e2 48 c7 c7 60 68 5f 89 8b 4c 24 08 48 89 c6 e8 38 27 3d 03 <0f> 0b 4c 8b 4c 24 18 e9 c0 fa ff ff 48 8d 7b 1c 48 ba 00 00 00 00 RSP: 0018:ffffc9000a807870 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8880308d6000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff52001500f00 RBP: ffff88801868e600 R08: 0000000000000001 R09: ffff8880b9f1fa5b R10: ffffed10173e3f4b R11: 3a312d3620627375 R12: ffff888016e15680 R13: 000000000000000e R14: 0000000000000002 R15: 0000000000000000 FS: 00007f1288dab8c0(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f49ea7ad130 CR3: 000000004d83e000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bcm5974_start_traffic drivers/input/mouse/bcm5974.c:799 [inline] bcm5974_start_traffic+0x88/0x110 drivers/input/mouse/bcm5974.c:783 bcm5974_open+0x85/0x130 drivers/input/mouse/bcm5974.c:839 input_open_device+0x155/0x290 drivers/input/input.c:629 evdev_open_device drivers/input/evdev.c:400 [inline] evdev_open+0x488/0x630 drivers/input/evdev.c:487 chrdev_open+0x20f/0x650 fs/char_dev.c:414 do_dentry_open+0x42a/0xfc0 fs/open.c:826 do_open fs/namei.c:3374 [inline] path_openat+0x9ec/0x22c0 fs/namei.c:3507 do_filp_open+0x199/0x3d0 fs/namei.c:3534 do_sys_openat2+0x11e/0x360 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_open fs/open.c:1228 [inline] __se_sys_open fs/open.c:1224 [inline] __x64_sys_open+0xfd/0x1a0 fs/open.c:1224 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f1287ef1840 Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 RSP: 002b:00007fffd50fea38 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00005610218bcf30 RCX: 00007f1287ef1840 RDX: 0000000000000000 RSI: 0000000000080902 RDI: 00005610218ad790 RBP: 0000000000000000 R08: 00005610218bcf7c R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd50fea80 R13: 00000000ffffffff R14: 0000000000000004 R15: 00005610218bcf70 ---------------- Code disassembly (best guess): 0: 4c 24 18 rex.WR and $0x18,%al 3: 89 4c 24 08 mov %ecx,0x8(%rsp) 7: 44 89 04 24 mov %r8d,(%rsp) b: e8 13 81 21 ff callq 0xff218123 10: 44 8b 04 24 mov (%rsp),%r8d 14: 4c 89 e2 mov %r12,%rdx 17: 48 c7 c7 60 68 5f 89 mov $0xffffffff895f6860,%rdi 1e: 8b 4c 24 08 mov 0x8(%rsp),%ecx 22: 48 89 c6 mov %rax,%rsi 25: e8 38 27 3d 03 callq 0x33d2762 2a: 0f 0b ud2 <-- trapping instruction 2c: 4c 8b 4c 24 18 mov 0x18(%rsp),%r9 31: e9 c0 fa ff ff jmpq 0xfffffaf6 36: 48 8d 7b 1c lea 0x1c(%rbx),%rdi 3a: 48 rex.W 3b: ba 00 00 00 00 mov $0x0,%edx