KASAN: user-memory-access Read in do_con

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
general protection fault in do_con_write	C	done		10703	1363d	1598d

done

10703

1363d

1598d

Title	Replies (including bot)	Last reply
KASAN: user-memory-access Read in do_con_trol	0 (1)	2020/05/08 09:28

Title

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KASAN: user-memory-access Read in do_con_trol

0 (1)

2020/05/08 09:28

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	KASAN: user-memory-access Read in do_con_trol				1	1520d	1520d	0/1	auto-closed as invalid on 2020/06/19 12:31
linux-4.19	KASAN: user-memory-access Read in do_con_trol				2	1479d	1521d	0/1	auto-closed as invalid on 2020/07/31 00:46

================================================================== BUG: KASAN: user-memory-access in memcpy include/linux/string.h:381 [inline] BUG: KASAN: user-memory-access in scr_memcpyw include/linux/vt_buffer.h:49 [inline] BUG: KASAN: user-memory-access in delete_char drivers/tty/vt/vt.c:853 [inline] BUG: KASAN: user-memory-access in csi_P drivers/tty/vt/vt.c:2008 [inline] BUG: KASAN: user-memory-access in do_con_trol+0x364/0x5d00 drivers/tty/vt/vt.c:2402 Read of size 398 at addr 00000000fffffe82 by task syz-executor.5/11995 CPU: 1 PID: 11995 Comm: syz-executor.5 Not tainted 5.7.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 __kasan_report.cold+0x5/0x4d mm/kasan/report.c:515 kasan_report+0x33/0x50 mm/kasan/common.c:625 check_memory_region_inline mm/kasan/generic.c:187 [inline] check_memory_region+0x141/0x190 mm/kasan/generic.c:193 memcpy+0x20/0x60 mm/kasan/common.c:106 memcpy include/linux/string.h:381 [inline] scr_memcpyw include/linux/vt_buffer.h:49 [inline] delete_char drivers/tty/vt/vt.c:853 [inline] csi_P drivers/tty/vt/vt.c:2008 [inline] do_con_trol+0x364/0x5d00 drivers/tty/vt/vt.c:2402 do_con_write.part.0+0xf34/0x1dc0 drivers/tty/vt/vt.c:2818 do_con_write drivers/tty/vt/vt.c:2588 [inline] con_write+0x41/0xe0 drivers/tty/vt/vt.c:3154 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x3f0/0xf90 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x495/0x800 drivers/tty/tty_io.c:1046 __vfs_write+0x76/0x100 fs/read_write.c:495 vfs_write+0x268/0x5d0 fs/read_write.c:559 ksys_write+0x12d/0x250 fs/read_write.c:612 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c829 Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe8c3dc7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000050c660 RCX: 000000000045c829 RDX: 0000000000000320 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000cea R14: 00000000004cf16f R15: 00007fe8c3dc86d4 ==================================================================

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Manager
2020/05/06 19:32	upstream	3c40cdb0e93e	4618eb2d	.config	console log	report	ci-upstream-kasan-gce
2020/05/06 02:05	upstream	dc56c5acd850	35b8eb30	.config	console log	report	ci-upstream-kasan-gce
2020/05/03 16:22	upstream	f66ed1ebbfde	58ae5e18	.config	console log	report	ci-upstream-kasan-gce

Crashes (3):

Assets (help?)