general protection fault in relay_switch

Title	Replies (including bot)	Last reply
general protection fault in relay_switch_subbuf (2)	0 (1)	2019/08/08 16:46

Title

Replies (including bot)

Last reply

general protection fault in relay_switch_subbuf (2)

0 (1)

2019/08/08 16:46

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	general protection fault in relay_switch_subbuf				2	1484d	1577d	0/1	auto-closed as invalid on 2020/07/25 03:12
upstream	KASAN: use-after-free Read in relay_switch_subbuf block trace	C	done	error	93	538d	2032d	0/26	auto-obsoleted due to no activity on 2023/04/20 06:56
upstream	general protection fault in relay_switch_subbuf block trace				4	1911d	1884d	0/26	auto-closed as invalid on 2019/07/23 22:29
linux-5.15	KASAN: use-after-free Read in relay_switch_subbuf				2	351d	371d	0/3	auto-obsoleted due to no activity on 2023/08/23 09:04
upstream	general protection fault in relay_switch_subbuf (3) block trace				1	1632d	1631d	0/26	auto-closed as invalid on 2020/01/29 10:20
linux-4.19	general protection fault in relay_switch_subbuf				1	1707d	1707d	0/1	auto-closed as invalid on 2019/12/15 08:14
linux-4.19	general protection fault in relay_switch_subbuf (2)				1	1404d	1404d	0/1	auto-closed as invalid on 2020/10/13 07:52
linux-4.19	KASAN: use-after-free Read in relay_switch_subbuf (2)				23	432d	914d	0/1	upstream: reported on 2021/10/17 18:33

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: 6341 Comm: syz-executor.1 Not tainted 5.3.0-rc2-next-20190730 #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:relay_switch_subbuf+0x216/0x920 kernel/relay.c:755 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bc 06 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 7b 58 49 8d 7f 50 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7d 06 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffff888087a17568 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffff88808a6cb840 RCX: ffffc9000816e000 RDX: 000000000000000a RSI: ffffffff8172d57e RDI: 0000000000000050 RBP: ffff888087a175c0 R08: ffff8880601522c0 R09: 0000000000000010 R10: ffffed1010f42eb6 R11: 0000000000000003 R12: 0000000000000040 R13: 0000000000000000 R14: ffff88809f376dc0 R15: 0000000000000000 FS: 00007eff1049a700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000009797e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: relay_reserve include/linux/relay.h:261 [inline] trace_note.isra.0+0x5b8/0x6e0 kernel/trace/blktrace.c:93 trace_note_tsk kernel/trace/blktrace.c:124 [inline] __blk_add_trace+0xb70/0xe10 kernel/trace/blktrace.c:264 blk_add_trace_bio.isra.0+0x19c/0x220 kernel/trace/blktrace.c:865 blk_add_trace_bio_queue+0x46/0x60 kernel/trace/blktrace.c:902 trace_block_bio_queue include/trace/events/block.h:357 [inline] generic_make_request_checks+0x16c3/0x21a0 block/blk-core.c:954 generic_make_request+0x8f/0xb50 block/blk-core.c:1006 submit_bio+0x104/0x4d0 block/blk-core.c:1163 submit_bh_wbc+0x6b6/0x900 fs/buffer.c:3132 submit_bh fs/buffer.c:3138 [inline] __bread_slow fs/buffer.c:1214 [inline] __bread_gfp+0x164/0x370 fs/buffer.c:1396 sb_bread include/linux/buffer_head.h:307 [inline] fat_fill_super+0x353/0x3880 fs/fat/inode.c:1653 vfat_fill_super+0x32/0x40 fs/fat/namei_vfat.c:1050 mount_bdev+0x304/0x3c0 fs/super.c:1405 vfat_mount+0x35/0x40 fs/fat/namei_vfat.c:1057 legacy_get_tree+0x113/0x220 fs/fs_context.c:651 vfs_get_tree+0x8f/0x380 fs/super.c:1480 do_new_mount fs/namespace.c:2791 [inline] do_mount+0x13b3/0x1c30 fs/namespace.c:3111 ksys_mount+0xdb/0x150 fs/namespace.c:3320 __do_sys_mount fs/namespace.c:3334 [inline] __se_sys_mount fs/namespace.c:3331 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3331 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c27a Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 7a 8d fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007eff10499a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007eff10499b40 RCX: 000000000045c27a RDX: 00007eff10499ae0 RSI: 00000000200002c0 RDI: 00007eff10499b00 RBP: 0000000000000000 R08: 00007eff10499b40 R09: 00007eff10499ae0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003 R13: 00000000004c8a98 R14: 00000000004df8d0 R15: 00000000ffffffff Modules linked in: ---[ end trace 04681dc2b7471884 ]--- RIP: 0010:relay_switch_subbuf+0x216/0x920 kernel/relay.c:755 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bc 06 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 7b 58 49 8d 7f 50 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7d 06 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffff888087a17568 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffff88808a6cb840 RCX: ffffc9000816e000 RDX: 000000000000000a RSI: ffffffff8172d57e RDI: 0000000000000050 RBP: ffff888087a175c0 R08: ffff8880601522c0 R09: 0000000000000010 R10: ffffed1010f42eb6 R11: 0000000000000003 R12: 0000000000000040 R13: 0000000000000000 R14: ffff88809f376dc0 R15: 0000000000000000 FS: 00007eff1049a700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000009797e000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400