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panic: runtime error: floating point error (2)

Status: premoderation: reported syz repro on 2025/01/09 05:12
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+f193bd3c38bc0ac7370e@syzkaller.appspotmail.com
First crash: 234d, last: 7d17h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/01/09 lts (merge base) 91786f140358 syz [report] panic: runtime error: floating point error
2025/01/09 upstream (ToT) eea6e4b4dfb8 syz [report] panic: runtime error: floating point error
▶ ▼ Similar bugs (10)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 panic: runtime error: floating point error 2 syz 6 104d 948d 0/2 upstream: reported syz repro on 2023/01/26 18:24
android-5-10 panic: runtime error: floating point error 2 1 1105d 1105d 0/2 auto-obsoleted due to no activity on 2022/11/21 00:58
upstream panic: runtime error: floating point error (2) 2 syz error 25 4d08h 768d 0/29 upstream: reported syz repro on 2023/07/25 08:02
linux-5.15 panic: runtime error: floating point error origin:lts-only 2 syz inconclusive 2 57d 202d 0/3 upstream: reported syz repro on 2025/02/10 09:25
android-5-15 panic: runtime error: floating point error 2 3 957d 1005d 0/2 auto-obsoleted due to no activity on 2023/04/24 18:55
android-5-10 panic: runtime error: floating point error (2) 2 syz error error 12 16d 957d 0/2 premoderation: reported syz repro on 2023/01/17 08:13
linux-6.1 panic: runtime error: floating point error origin:upstream 2 syz 1 78d 78d 0/3 upstream: reported syz repro on 2025/06/14 16:04
android-6-1 panic: runtime error: floating point error (2) origin:lts missing-backport 2 syz error 12 5d23h 613d 0/2 premoderation: reported syz repro on 2023/12/27 20:43
android-6-1 panic: runtime error: floating point error 2 1 743d 743d 0/2 auto-obsoleted due to no activity on 2023/11/17 15:39
upstream panic: runtime error: floating point error kernel 2 2 931d 1210d 22/29 fixed on 2023/02/24 13:50
▶ ▼ Last patch testing requests (4)
Created Duration User Patch Repo Result
2025/08/24 07:53 37m retest repro android13-5.15-lts report log
2025/08/10 07:36 13m retest repro android13-5.15-lts report log
2025/06/17 23:40 6m retest repro android13-5.15-lts report log
2025/06/03 05:25 8m retest repro android13-5.15-lts report log

Sample crash report:
panic: runtime error: floating point error
[signal SIGFPE: floating-point exception code=0x80 addr=0x0 pc=0xf08039]

goroutine 15 [running]:
github.com/google/syzkaller/prog.foreachArgImpl({0x22bac20, 0xc003217080}, 0x20059?, 0xc006af4000, 0xc0032ab5e8)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:165 +0x299
github.com/google/syzkaller/prog.ForeachArg(0xc002428fa0, 0xc0032ab5e8)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:146 +0x51
github.com/google/syzkaller/prog.(*execContext).writeCopyin(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:157
github.com/google/syzkaller/prog.(*execContext).serializeCall(0xc0032ab680, 0xc002428fa0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:93 +0x52
github.com/google/syzkaller/prog.(*Prog).SerializeForExec(0xc0009dd380)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:78 +0x1a8
github.com/google/syzkaller/pkg/rpcserver.(*Runner).sendRequest(0xc0023f9d40, 0xc00256dbc0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:297 +0x22b
github.com/google/syzkaller/pkg/rpcserver.(*Runner).ConnectionLoop(0xc0023f9d40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:182 +0x53e
github.com/google/syzkaller/pkg/rpcserver.(*server).connectionLoop(0xc001256b40, {0x22b7950?, 0xc002429270?}, 0xc0023f9d40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:437 +0x196
github.com/google/syzkaller/pkg/rpcserver.(*server).handleRunnerConn(0xc001256b40, {0x22b7950, 0xc002429270}, 0xc0023f9d40, 0xc0024292c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:360 +0x54a
github.com/google/syzkaller/pkg/rpcserver.(*server).handleConn(0xc001256b40, {0x22b7950, 0xc002429270}, 0xc0024292c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:322 +0x2aa
github.com/google/syzkaller/pkg/rpcserver.(*server).Serve.func1.1({0x22b7950?, 0xc002429270?}, 0x0?)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:242 +0x31
github.com/google/syzkaller/pkg/flatrpc.(*Serv).Serve.func2()
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/flatrpc/conn.go:78 +0x198
golang.org/x/sync/errgroup.(*Group).Go.func1()
	/syzkaller/gopath/pkg/mod/golang.org/x/sync@v0.16.0/errgroup/errgroup.go:93 +0x50
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 11
	/syzkaller/gopath/pkg/mod/golang.org/x/sync@v0.16.0/errgroup/errgroup.go:78 +0x93

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/26 17:19 android13-5.15-lts a71626bd56a5 fb8f743d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 panic: runtime error: floating point error
2025/05/19 22:19 android13-5.15-lts 57725b368731 b84f0537 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf panic: runtime error: floating point error
2025/01/09 05:11 android13-5.15-lts 19092c8155b4 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15-perf panic: runtime error: floating point error
* Struck through repros no longer work on HEAD.