KASAN: wild-memory-access Read in insert

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
general protection fault in do_con_write	C	done		10703	1691d	1926d

done

10703

1691d

1926d

Title	Replies (including bot)	Last reply
KASAN: wild-memory-access Read in insert_char	0 (1)	2019/12/10 20:25

Title

Replies (including bot)

Last reply

KASAN: wild-memory-access Read in insert_char

0 (1)

2019/12/10 20:25


Created	Duration	User	Repo	Result
2020/07/26 02:43	22m	bisect fix	upstream	OK (0) job log log
2020/05/31 08:49	18m	bisect fix	upstream	OK (0) job log log
2020/04/16 19:18	26m	bisect fix	upstream	OK (0) job log log
2020/03/17 10:11	21m	bisect fix	upstream	OK (0) job log log
2020/02/14 21:25	21m	bisect fix	upstream	OK (0) job log log
2020/01/12 23:58	20m	bisect fix	upstream	OK (0) job log log

================================================================== BUG: KASAN: wild-memory-access in memmove include/linux/string.h:395 [inline] BUG: KASAN: wild-memory-access in scr_memmovew include/linux/vt_buffer.h:68 [inline] BUG: KASAN: wild-memory-access in insert_char+0x206/0x400 drivers/tty/vt/vt.c:839 Read of size 212 at addr 00000000ffffff3a by task syz-executor266/8995 CPU: 1 PID: 8995 Comm: syz-executor266 Not tainted 5.5.0-rc1-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+0x197/0x210 lib/dump_stack.c:118 __kasan_report.cold+0x5/0x41 mm/kasan/report.c:510 kasan_report+0x12/0x20 mm/kasan/common.c:639 check_memory_region_inline mm/kasan/generic.c:185 [inline] check_memory_region+0x134/0x1a0 mm/kasan/generic.c:192 memmove+0x24/0x50 mm/kasan/common.c:116 memmove include/linux/string.h:395 [inline] scr_memmovew include/linux/vt_buffer.h:68 [inline] insert_char+0x206/0x400 drivers/tty/vt/vt.c:839 csi_at drivers/tty/vt/vt.c:1964 [inline] do_con_trol+0x41a6/0x61b0 drivers/tty/vt/vt.c:2431 do_con_write.part.0+0xfd9/0x1ef0 drivers/tty/vt/vt.c:2797 do_con_write drivers/tty/vt/vt.c:2565 [inline] con_write+0x46/0xd0 drivers/tty/vt/vt.c:3135 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x40e/0x1080 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:962 [inline] tty_write+0x496/0x7f0 drivers/tty/tty_io.c:1046 __vfs_write+0x8a/0x110 fs/read_write.c:494 vfs_write+0x268/0x5d0 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __ia32_sys_write+0x71/0xb0 fs/read_write.c:620 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x27b/0xe16 arch/x86/entry/common.c:408 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fc6a39 Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000ffdae18c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000000 RDX: 0000000000000078 RSI: 00000000080eb080 RDI: 00000000ffdae1e0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ==================================================================

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Manager
2019/12/10 18:22	upstream	6794862a16ef	5a5826a1	.config	console log	report	syz	C	ci-upstream-kasan-gce-386
2020/05/01 08:49	upstream	c45e8bccecaf	a4d01b80	.config	console log	report			ci-upstream-kasan-gce-386
2020/01/15 21:25	upstream	51d69817519f	f9b69507	.config	console log	report			ci-upstream-kasan-gce-386

Crashes (3):

Assets (help?)