KASAN: stack-out-of-bounds Read in rb

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
KASAN: stack-out-of-bounds Read in timerqueue_add kernel	C			4	2351d	2367d

2351d

2367d

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KASAN: stack-out-of-bounds Read in rb_erase (3)	1 (2)	2018/07/07 16:47

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KASAN: stack-out-of-bounds Read in rb_erase (3)

1 (2)

2018/07/07 16:47

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KASAN: stack-out-of-bounds Read in rb_erase (4) kernel	1	2174d	2174d	11/28	fixed on 2019/02/17 14:17
upstream	KASAN: stack-out-of-bounds Read in rb_erase (2) kernel	1	2365d	2365d	0/28	closed as invalid on 2018/07/07 07:02
upstream	KASAN: stack-out-of-bounds Read in rb_erase kernel	1	2365d	2365d	0/28	closed as invalid on 2018/07/06 08:08

random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) ================================================================== BUG: KASAN: stack-out-of-bounds in ____rb_erase_color lib/rbtree.c:258 [inline] BUG: KASAN: stack-out-of-bounds in rb_erase+0x19e9/0x3550 lib/rbtree.c:462 Read of size 8 at addr ffff8801c2dd7718 by task syz-executor396/4530 CPU: 1 PID: 4530 Comm: syz-executor396 Not tainted 4.18.0-rc3+ #134 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 ____rb_erase_color lib/rbtree.c:258 [inline] rb_erase+0x19e9/0x3550 lib/rbtree.c:462 timerqueue_del+0x86/0x150 lib/timerqueue.c:87 __remove_hrtimer+0xa8/0x1b0 kernel/time/hrtimer.c:984 __run_hrtimer kernel/time/hrtimer.c:1380 [inline] __hrtimer_run_queues+0x369/0x10c0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x165/0x730 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 </IRQ> The buggy address belongs to the page: page:ffffea00070b75c0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x2fffc0000000000() raw: 02fffc0000000000 0000000000000000 ffffffff070b0101 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801c2dd7600: f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00 ffff8801c2dd7680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8801c2dd7700: f1 f1 f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 ^ ffff8801c2dd7780: f2 f2 f2 f2 00 f2 f2 f2 f2 f2 f2 f2 f8 f2 f2 f2 ffff8801c2dd7800: f2 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00 00 00 00 ==================================================================

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2018/07/07 09:57	upstream	29119529d8de	6c0c0099	.config	console log	report	syz	C			ci-upstream-kasan-gce-root
2018/07/11 10:18	bpf-next	d90c936fb318	2e0e3130	.config	console log	report					ci-upstream-bpf-next-kasan-gce

Crashes (2):

Assets (help?)