BUG: unable to handle kernel paging request in slhc

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	BUG: unable to handle kernel paging request in slhc_free				1	1820d	1820d	0/1	auto-closed as invalid on 2019/10/25 08:43
upstream	BUG: unable to handle kernel paging request in slhc_free net	C	done	done	177	1825d	1942d	15/26	fixed on 2020/03/11 20:34

Created	Duration	User	Patch	Repo	Result
2019/12/29 05:55	3h58m	bisect fix		linux-4.14.y	job log (1)
2019/11/29 05:22	22m	bisect fix		linux-4.14.y	job log (0) log

Created

Duration

User

Patch

Repo

Result

2019/12/29 05:55

3h58m

bisect fix

linux-4.14.y

job log (1)

2019/11/29 05:22

22m

bisect fix

linux-4.14.y

job log (0) log

RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441129 RDX: 0000000020000100 RSI: 0000000000005423 RDI: 0000000000000003 RBP: 00007ffe83f5f590 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 BUG: unable to handle kernel paging request at fffffffffffffff4 IP: slhc_free+0x31/0xb0 drivers/net/slip/slhc.c:159 PGD 766d067 P4D 766d067 PUD 766f067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 7230 Comm: syz-executor671 Not tainted 4.14.113 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888096928300 task.stack: ffff888083520000 RIP: 0010:slhc_free+0x31/0xb0 drivers/net/slip/slhc.c:159 RSP: 0018:ffff888083527ae8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: 1ffff11012d2517e RDX: 1ffffffffffffffe RSI: ffff888096928bd0 RDI: fffffffffffffff4 RBP: ffff888083527af8 R08: ffff888096928300 R09: ffff888096928bf0 R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffff4 R13: ffff888096f29408 R14: ffff88809b977740 R15: ffff888096f28940 FS: 0000000001f5d880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff4 CR3: 00000000a5e44000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sl_alloc_bufs drivers/net/slip/slip.c:197 [inline] slip_open+0xc96/0xfb5 drivers/net/slip/slip.c:826 tty_ldisc_open.isra.0+0x75/0xc0 drivers/tty/tty_ldisc.c:474 tty_set_ldisc+0x29a/0x610 drivers/tty/tty_ldisc.c:599 tiocsetd drivers/tty/tty_io.c:2351 [inline] tty_ioctl+0x976/0x1340 drivers/tty/tty_io.c:2595 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7b9/0x1070 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x441129 RSP: 002b:00007ffe83f5f578 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441129 RDX: 0000000020000100 RSI: 0000000000005423 RDI: 0000000000000003 RBP: 00007ffe83f5f590 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 Code: 41 54 49 89 fc e8 30 ee 87 fd 4d 85 e4 74 77 e8 26 ee 87 fd 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 6d <4d> 8b 2c 24 4d 85 ed 74 0d e8 01 ee 87 fd 4c 89 ef e8 69 69 b1 RIP: slhc_free+0x31/0xb0 drivers/net/slip/slhc.c:159 RSP: ffff888083527ae8 CR2: fffffffffffffff4 ---[ end trace 7795915591f4987e ]---

Crashes (4):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Manager
2019/04/20 20:06	linux-4.14.y	68d7a45eec10	b0e8efcb	.config	console log	report	syz	C	ci2-linux-4-14
2019/04/26 12:01	linux-4.14.y	68d7a45eec10	b617407b	.config	console log	report			ci2-linux-4-14
2019/04/20 17:18	linux-4.14.y	68d7a45eec10	b0e8efcb	.config	console log	report			ci2-linux-4-14
2019/04/16 06:59	linux-4.14.y	1ec8f1f0bffe	505ab413	.config	console log	report			ci2-linux-4-14

Crashes (4):

Assets (help?)