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Message-ID: <000000000000d7894b05f5924787@google.com>
Date: Sat, 25 Feb 2023 19:51:42 -0800
From: syzbot <syzbot+21f2b8753d8bfc6bb816@...kaller.appspotmail.com>
To: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
miklos@...redi.hu, reiserfs-devel@...r.kernel.org,
syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: [syzbot] [reiserfs?] [fat?] [fuse?] general protection fault in
timerqueue_add (4)
Hello,
syzbot found the following issue on:
HEAD commit: 4a7d37e824f5 Merge tag 'hardening-v6.3-rc1' of git://git.k..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11fbf928c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=8b969c5af147d31c
dashboard link: https://syzkaller.appspot.com/bug?extid=21f2b8753d8bfc6bb816
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17c64f20c80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13734ba0c80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6c3d867561ee/disk-4a7d37e8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/422516721d17/vmlinux-4a7d37e8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/164340e12ac4/bzImage-4a7d37e8.xz
mounted in repro #1: https://storage.googleapis.com/syzbot-assets/71954e6c3886/mount_1.gz
mounted in repro #2: https://storage.googleapis.com/syzbot-assets/89d5f0b5f58a/mount_5.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+21f2b8753d8bfc6bb816@...kaller.appspotmail.com
general protection fault, probably for non-canonical address 0xe3fffb24000f33f5: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x1ffff92000799fa8-0x1ffff92000799faf]
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-syzkaller-02299-g4a7d37e824f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:__timerqueue_less lib/timerqueue.c:22 [inline]
RIP: 0010:rb_add_cached include/linux/rbtree.h:174 [inline]
RIP: 0010:timerqueue_add+0xf7/0x330 lib/timerqueue.c:40
Code: 48 c1 ea 03 42 80 3c 22 00 0f 85 c4 01 00 00 49 8b 17 48 85 d2 74 40 48 89 d3 e8 44 f1 c3 f7 48 8d 7b 18 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 ab 01 00 00 4c 8b 7b 18 4c 89 ef 4c 89 fe e8
RSP: 0018:ffffc900001e0da8 EFLAGS: 00010017
RAX: 03ffff24000f33f5 RBX: 1ffff92000799f95 RCX: 0000000000000000
RDX: ffff88813feb1d40 RSI: ffffffff89bdeb3c RDI: 1ffff92000799fad
RBP: ffff8880b992c0e0 R08: 0000000000000006 R09: 00000009dd72e480
R10: ffffc90003c9f5f8 R11: 0000000000000000 R12: dffffc0000000000
R13: 00000009dd72e480 R14: 0000000000000000 R15: ffffc90003ccfc58
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f16907af000 CR3: 000000001de6d000 CR4: 0000000000350ee0
Call Trace:
<IRQ>
enqueue_hrtimer+0x1aa/0x490 kernel/time/hrtimer.c:1091
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0xc71/0x1010 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x320/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x180/0x660 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:113
Code: eb 03 83 e3 01 89 de 0f 1f 44 00 00 84 db 75 1b 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d e7 5a a8 00 0f 1f 44 00 00 fb f4 <fa> 5b c3 cc 0f 1f 00 66 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 0f
RSP: 0018:ffffc90000177d10 EFLAGS: 00000246
RAX: ffff88813feb1d40 RBX: 0000000000000000 RCX: ffffffff8a096b45
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880179b1864 R08: 0000000000000001 R09: ffff8880b993606b
R10: ffffed1017326c0d R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880179b1800 R14: ffff8880179b1864 R15: 0000000000000000
acpi_idle_do_entry+0x53/0x70 drivers/acpi/processor_idle.c:573
acpi_idle_enter+0x173/0x290 drivers/acpi/processor_idle.c:711
cpuidle_enter_state+0xd3/0x6f0 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:215 [inline]
do_idle+0x348/0x440 kernel/sched/idle.c:282
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379
start_secondary+0x256/0x300 arch/x86/kernel/smpboot.c:264
secondary_startup_64_no_verify+0xce/0xdb
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__timerqueue_less lib/timerqueue.c:22 [inline]
RIP: 0010:rb_add_cached include/linux/rbtree.h:174 [inline]
RIP: 0010:timerqueue_add+0xf7/0x330 lib/timerqueue.c:40
Code: 48 c1 ea 03 42 80 3c 22 00 0f 85 c4 01 00 00 49 8b 17 48 85 d2 74 40 48 89 d3 e8 44 f1 c3 f7 48 8d 7b 18 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 ab 01 00 00 4c 8b 7b 18 4c 89 ef 4c 89 fe e8
RSP: 0018:ffffc900001e0da8 EFLAGS: 00010017
RAX: 03ffff24000f33f5 RBX: 1ffff92000799f95 RCX: 0000000000000000
RDX: ffff88813feb1d40 RSI: ffffffff89bdeb3c RDI: 1ffff92000799fad
RBP: ffff8880b992c0e0 R08: 0000000000000006 R09: 00000009dd72e480
R10: ffffc90003c9f5f8 R11: 0000000000000000 R12: dffffc0000000000
R13: 00000009dd72e480 R14: 0000000000000000 R15: ffffc90003ccfc58
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f16907af000 CR3: 000000001de6d000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess):
0: 48 c1 ea 03 shr $0x3,%rdx
4: 42 80 3c 22 00 cmpb $0x0,(%rdx,%r12,1)
9: 0f 85 c4 01 00 00 jne 0x1d3
f: 49 8b 17 mov (%r15),%rdx
12: 48 85 d2 test %rdx,%rdx
15: 74 40 je 0x57
17: 48 89 d3 mov %rdx,%rbx
1a: e8 44 f1 c3 f7 callq 0xf7c3f163
1f: 48 8d 7b 18 lea 0x18(%rbx),%rdi
23: 48 89 f8 mov %rdi,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 0f 85 ab 01 00 00 jne 0x1e0
35: 4c 8b 7b 18 mov 0x18(%rbx),%r15
39: 4c 89 ef mov %r13,%rdi
3c: 4c 89 fe mov %r15,%rsi
3f: e8 .byte 0xe8
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
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