general protection fault in loop_validate

Title	Replies (including bot)	Last reply
[PATCH 5.0 00/52] 5.0.5-stable review	61 (61)	2019/03/27 05:06
[PATCH 4.19 00/45] 4.19.32-stable review	51 (51)	2019/03/27 04:04
general protection fault in loop_validate_file (2)	6 (7)	2019/03/20 13:43
[PATCH 1/1] loop: access lo_backing_file only when the loop device is Lo_bound	2 (2)	2019/03/18 14:21

Title

Replies (including bot)

Last reply

[PATCH 5.0 00/52] 5.0.5-stable review

61 (61)

2019/03/27 05:06

[PATCH 4.19 00/45] 4.19.32-stable review

51 (51)

2019/03/27 04:04

general protection fault in loop_validate_file (2)

6 (7)

2019/03/20 13:43

[PATCH 1/1] loop: access lo_backing_file only when the loop device is Lo_bound

2 (2)

2019/03/18 14:21

Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
android-44	general protection fault in loop_validate_file	syz		20	2090d	2008d	0/2	public: reported syz repro on 2019/04/14 00:02
android-414	general protection fault in loop_validate_file			4	2098d	2008d	0/1	auto-closed as invalid on 2019/07/13 08:46
upstream	general protection fault in loop_validate_file block	C		19	2123d	2308d	0/28	closed as dup on 2018/06/18 14:51
android-49	general protection fault in loop_validate_file	syz		28	1865d	2008d	0/3	public: reported syz repro on 2019/04/14 09:28
android-414	general protection fault in loop_validate_file (2)	syz		6	1862d	1909d	0/1	public: reported syz repro on 2019/07/22 13:25
linux-4.14	general protection fault in loop_validate_file	C	error	9	589d	1871d	0/1	upstream: reported C repro on 2019/08/28 22:28

kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 16621 Comm: syz-executor.5 Not tainted 5.1.0-rc1+ #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:loop_validate_file+0x23e/0x310 drivers/block/loop.c:652 Code: 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 d4 00 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b8 01 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 a8 00 00 00 4d 8b a4 24 b8 01 00 00 4c 89 e0 RSP: 0018:ffff88807d077b18 EFLAGS: 00010202 RAX: 0000000000000037 RBX: ffff88807fc67a98 RCX: ffffc900108bc000 RDX: 00000000000000a7 RSI: ffffffff83e7619d RDI: 00000000000001b8 RBP: ffff88807d077b40 R08: ffff8880630b01c0 R09: fffffbfff11d9825 R10: ffff88807d077b40 R11: ffffffff88ecc127 R12: 0000000000000000 R13: 0000000000000002 R14: ffff8880a6db9080 R15: dffffc0000000000 FS: 00007fafbf0a1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004dc188 CR3: 000000009ea34000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: loop_set_fd drivers/block/loop.c:930 [inline] lo_ioctl+0x99d/0x2150 drivers/block/loop.c:1542 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 block_ioctl+0xee/0x130 fs/block_dev.c:1931 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458079 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fafbf0a0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458079 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fafbf0a16d4 R13: 00000000004c1252 R14: 00000000004d31a0 R15: 00000000ffffffff Modules linked in: ---[ end trace 956d3aa12fd395cf ]--- RIP: 0010:loop_validate_file+0x23e/0x310 drivers/block/loop.c:652 Code: 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 d4 00 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b8 01 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 a8 00 00 00 4d 8b a4 24 b8 01 00 00 4c 89 e0 RSP: 0018:ffff88807d077b18 EFLAGS: 00010202 RAX: 0000000000000037 RBX: ffff88807fc67a98 RCX: ffffc900108bc000 RDX: 00000000000000a7 RSI: ffffffff83e7619d RDI: 00000000000001b8 RBP: ffff88807d077b40 R08: ffff8880630b01c0 R09: fffffbfff11d9825 R10: ffff88807d077b40 R11: ffffffff88ecc127 R12: 0000000000000000 R13: 0000000000000002 R14: ffff8880a6db9080 R15: dffffc0000000000 FS: 00007fafbf0a1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000f019b8 CR3: 000000009ea34000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Manager
2019/03/20 17:03	upstream	babf09c3837f	a664c187	.config	console log	report	ci-upstream-kasan-gce-selinux-root
2019/03/20 03:02	upstream	b7a42146dca3	2458c1c6	.config	console log	report	ci-upstream-kasan-gce
2019/03/16 23:39	upstream	9c7dc824d9a4	bab43553	.config	console log	report	ci-upstream-kasan-gce

Crashes (3):

Assets (help?)