general protection fault in hci_uart_tty

Title	Replies (including bot)	Last reply
[syzbot] general protection fault in hci_uart_tty_ioctl	0 (1)	2022/08/16 16:27

Title

Replies (including bot)

Last reply

[syzbot] general protection fault in hci_uart_tty_ioctl

0 (1)

2022/08/16 16:27

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-5.15	general protection fault in hci_uart_tty_ioctl origin:upstream	C			1	4d10h	4d10h	0/3	upstream: reported C repro on 2023/05/29 05:45
android-54	general protection fault in hci_uart_tty_ioctl	C			2	322d	322d	0/2	auto-obsoleted due to no activity on 2023/04/19 15:38

linux-5.15

general protection fault in hci_uart_tty_ioctl origin:upstream

4d10h

0/3

upstream: reported C repro on 2023/05/29 05:45

android-54

general protection fault in hci_uart_tty_ioctl

322d

0/2

auto-obsoleted due to no activity on 2023/04/19 15:38

Created	Duration	User	Patch	Repo	Result
2022/08/17 11:03	18m	hdanton@sina.com	patch	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7ebfc85e2cd7	OK log

Created

Duration

User

Patch

Repo

Result

2022/08/17 11:03

18m

hdanton@sina.com

patch

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7ebfc85e2cd7

OK log


Created	Duration	User	Repo	Result
2023/05/03 15:00	37m	bisect fix	upstream	job log (0) log
2023/04/02 17:22	36m	bisect fix	upstream	job log (0) log
2023/03/03 16:47	35m	bisect fix	upstream	job log (0) log
2023/02/01 08:03	38m	bisect fix	upstream	job log (0) log
2022/10/12 17:48	40m (2)	bisect fix	upstream	job log (0) log

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 3842 Comm: syz-executor438 Not tainted 6.1.0-rc5-syzkaller-00144-g84368d882b96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:hci_uart_tty_ioctl+0x243/0xc20 drivers/bluetooth/hci_ldisc.c:774 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c2 08 00 00 48 8b 9b b8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 5f 08 00 00 44 8b 23 e9 14 ff RSP: 0018:ffffc900037a7d18 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86f78e49 RDI: ffff88801e1b7cb8 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000092080 R12: ffff88807a6ef000 R13: 0000000000000000 R14: ffffffffffffffe7 R15: 0000000000000000 FS: 00007fdb21936700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000088 CR3: 000000007391e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> tty_ioctl+0x7eb/0x1660 drivers/tty/tty_io.c:2780 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdb219a5cd9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdb21936268 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fdb21a2e4d0 RCX: 00007fdb219a5cd9 RDX: 0000000000000000 RSI: 00000000800455c9 RDI: 0000000000000003 RBP: 00007fdb219fb084 R08: 00007fdb21936700 R09: 0000000000000000 R10: 00007fdb21936700 R11: 0000000000000246 R12: 00007fdb21936280 R13: 6d74702f7665642f R14: 00007fdb2193627c R15: 00007fdb21a2e4d8 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hci_uart_tty_ioctl+0x243/0xc20 drivers/bluetooth/hci_ldisc.c:774 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c2 08 00 00 48 8b 9b b8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 5f 08 00 00 44 8b 23 e9 14 ff RSP: 0018:ffffc900037a7d18 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86f78e49 RDI: ffff88801e1b7cb8 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000092080 R12: ffff88807a6ef000 R13: 0000000000000000 R14: ffffffffffffffe7 R15: 0000000000000000 FS: 00007fdb21936700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007391e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: df 48 89 fisttps -0x77(%rax) 3: fa cli 4: 48 c1 ea 03 shr $0x3,%rdx 8: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) c: 0f 85 c2 08 00 00 jne 0x8d4 12: 48 8b 9b b8 00 00 00 mov 0xb8(%rbx),%rbx 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 da mov %rbx,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e 5f 08 00 00 jle 0x899 3a: 44 8b 23 mov (%rbx),%r12d 3d: e9 .byte 0xe9 3e: 14 ff adc $0xff,%al

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Assets	Manager	Title
2022/11/19 05:12	upstream	84368d882b96	5bb70014	.config	console log	report	syz	C	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-selinux-root	general protection fault in hci_uart_tty_ioctl
2022/10/17 10:42	upstream	55be6084c8e0	67cb024c	.config	console log	report	syz	C	[disk image] [vmlinux]	ci-upstream-kasan-gce-smack-root	general protection fault in hci_uart_tty_ioctl
2022/08/12 16:21	upstream	7ebfc85e2cd7	402cd70d	.config	console log	report	syz	C		ci-upstream-kasan-gce-root	general protection fault in hci_uart_tty_ioctl

Crashes (3):