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panic: runtime error: floating point error
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syzbot
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Jan 26, 2023, 1:24:41 PM
1/26/23
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to syzkaller-a...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 0ed90f62b184 UPSTREAM: ALSA: pcm: Move rwsem lock inside s..
git tree: android12-5.4
console output:
https://syzkaller.appspot.com/x/log.txt?x=13b0d6c1480000
kernel config:
https://syzkaller.appspot.com/x/.config?x=8dc6bbfc90d8f09a
dashboard link:
https://syzkaller.appspot.com/bug?extid=55dff8071a101f291217
compiler: Debian clang version 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=148f1649480000
Downloadable assets:
disk image:
https://storage.googleapis.com/syzbot-assets/dd9b08fe9f06/disk-0ed90f62.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/4aa53427ed99/vmlinux-0ed90f62.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/58f56e9f6727/bzImage-0ed90f62.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+55dff8...@syzkaller.appspotmail.com
panic: runtime error: floating point error
[signal SIGFPE: floating-point exception code=0x80 addr=0x0 pc=0x46e1e0]
goroutine 9 [running]:
sync.(*Mutex).Unlock(0x9621c0)
/usr/local/go/src/sync/mutex.go:179
github.com/google/syzkaller/pkg/ipc.(*Gate).Leave(0xc00034c100
, 0x4)
/syzkaller/gopath/src/
github.com/google/syzkaller/pkg/ipc/gate.go:75
+0xc8
main.(*Context).execute(0xc00051c000, 0x2, 0x0, 0x0)
/syzkaller/gopath/src/
github.com/google/syzkaller/tools/syz-execprog/execprog.go:198
+0x458
main.(*Context).run(0xc00051c000, 0x0)
/syzkaller/gopath/src/
github.com/google/syzkaller/tools/syz-execprog/execprog.go:157
+0xed
main.main.func3()
/syzkaller/gopath/src/
github.com/google/syzkaller/tools/syz-execprog/execprog.go:120
+0x5c
created by main.main
/syzkaller/gopath/src/
github.com/google/syzkaller/tools/syz-execprog/execprog.go:118
+0x61c
[
---
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
syzk...@googlegroups.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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