Hello,
syzbot found the following issue on:
HEAD commit: c20f9cef725b Merge branch 'libbpf: add netfilter link atta..
git tree: bpf-next
console output: https://syzkaller.appspot.com/x/log.txt?x=127adbfb280000
kernel config: https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
dashboard link: https://syzkaller.appspot.com/bug?extid=319a9b09e5de1ecae1e1
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/bf9c9608a1e0/disk-c20f9cef.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3bde4e994bd0/vmlinux-c20f9cef.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5d80f8634183/bzImage-c20f9cef.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]
================================================================================
UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15
index 1 is out of range for type 'upid [1]'
CPU: 0 PID: 5004 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04259-gc20f9cef725b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x136/0x150 lib/dump_stack.c:106
ubsan_epilogue lib/ubsan.c:217 [inline]
__ubsan_handle_out_of_bounds+0xd5/0x140 lib/ubsan.c:348
alloc_pid+0xbe5/0xdd0 kernel/pid.c:244
copy_process+0x4589/0x7620 kernel/fork.c:2519
kernel_clone+0xeb/0x890 kernel/fork.c:2911
__do_sys_clone+0xba/0x100 kernel/fork.c:3054
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff043489fab
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007ffdc29faa70 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffdc29fb0c8 RCX: 00007ff043489fab
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555555ae9400
R10: 0000555555ae96d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdc29fab60 R14: 00007ff0435ac9d8 R15: 000000000000000c
</TASK>
================================================================================
---
This report is generated by a bot. It may contain errors.
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syzbot engineers can be reached at [email protected].
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If the bug is already fixed, let syzbot know by replying with:
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If you want to change bug's subsystems, reply with:
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If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
On Mon, Jul 03, 2023 at 12:14:17AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: c20f9cef725b Merge branch 'libbpf: add netfilter link atta..
> git tree: bpf-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=127adbfb280000
> kernel config: https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
> dashboard link: https://syzkaller.appspot.com/bug?extid=319a9b09e5de1ecae1e1
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/bf9c9608a1e0/disk-c20f9cef.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/3bde4e994bd0/vmlinux-c20f9cef.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/5d80f8634183/bzImage-c20f9cef.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: [email protected]
#syz dup: [syzbot] [kernel?] net-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
> On Mon, Jul 03, 2023 at 12:14:17AM -0700, syzbot wrote:
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: c20f9cef725b Merge branch 'libbpf: add netfilter link atta..
>> git tree: bpf-next
>> console output: https://syzkaller.appspot.com/x/log.txt?x=127adbfb280000
>> kernel config: https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
>> dashboard link: https://syzkaller.appspot.com/bug?extid=319a9b09e5de1ecae1e1
>> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>>
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/bf9c9608a1e0/disk-c20f9cef.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/3bde4e994bd0/vmlinux-c20f9cef.xz
>> kernel image: https://storage.googleapis.com/syzbot-assets/5d80f8634183/bzImage-c20f9cef.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: [email protected]
>
> #syz dup: [syzbot] [kernel?] net-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
can't find the dup bug
On Mon, Jul 03, 2023 at 12:14:17AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: c20f9cef725b Merge branch 'libbpf: add netfilter link atta..
> git tree: bpf-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=127adbfb280000
> kernel config: https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
> dashboard link: https://syzkaller.appspot.com/bug?extid=319a9b09e5de1ecae1e1
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/bf9c9608a1e0/disk-c20f9cef.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/3bde4e994bd0/vmlinux-c20f9cef.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/5d80f8634183/bzImage-c20f9cef.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: [email protected]
#syz fix: pid: Replace struct pid 1-element array with flex-array
#syz dup: net-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
On Mon, Jul 3, 2023 at 10:02 AM syzbot
<[email protected]> wrote:
>
> > On Mon, Jul 03, 2023 at 12:14:17AM -0700, syzbot wrote:
> >> Hello,
> >>
> >> syzbot found the following issue on:
> >>
> >> HEAD commit: c20f9cef725b Merge branch 'libbpf: add netfilter link atta..
> >> git tree: bpf-next
> >> console output: https://syzkaller.appspot.com/x/log.txt?x=127adbfb280000
> >> kernel config: https://syzkaller.appspot.com/x/.config?x=924167e3666ff54c
> >> dashboard link: https://syzkaller.appspot.com/bug?extid=319a9b09e5de1ecae1e1
> >> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> >>
> >> Downloadable assets:
> >> disk image: https://storage.googleapis.com/syzbot-assets/bf9c9608a1e0/disk-c20f9cef.raw.xz
> >> vmlinux: https://storage.googleapis.com/syzbot-assets/3bde4e994bd0/vmlinux-c20f9cef.xz
> >> kernel image: https://storage.googleapis.com/syzbot-assets/5d80f8634183/bzImage-c20f9cef.xz
> >>
> >> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> >> Reported-by: [email protected]
> >
> > #syz dup: [syzbot] [kernel?] net-next test error: UBSAN: array-index-out-of-bounds in alloc_pid
>
> can't find the dup bug
>
> --
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