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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: 148d, last: 3d13h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/01/09 lts (merge base) 91786f140358 C [report] panic: runtime error: floating point error
2025/01/09 upstream (ToT) eea6e4b4dfb8 C [report] panic: runtime error: floating point error
▶ ▼ Similar bugs (9)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 panic: runtime error: floating point error syz 6 17d 862d 0/2 upstream: reported syz repro on 2023/01/26 18:24
android-5-10 panic: runtime error: floating point error 1 1018d 1018d 0/2 auto-obsoleted due to no activity on 2022/11/21 00:58
upstream panic: runtime error: floating point error (2) syz error 21 3d16h 682d 0/28 upstream: reported syz repro on 2023/07/25 08:02
linux-5.15 panic: runtime error: floating point error origin:lts-only syz inconclusive 1 49d 116d 0/3 upstream: reported syz repro on 2025/02/10 09:25
android-5-15 panic: runtime error: floating point error 3 871d 918d 0/2 auto-obsoleted due to no activity on 2023/04/24 18:55
android-5-10 panic: runtime error: floating point error (2) syz error error 11 3d15h 871d 0/2 premoderation: reported syz repro on 2023/01/17 08:13
android-6-1 panic: runtime error: floating point error (2) origin:lts missing-backport syz error 11 3d17h 526d 0/2 premoderation: reported syz repro on 2023/12/27 20:43
android-6-1 panic: runtime error: floating point error 1 657d 657d 0/2 auto-obsoleted due to no activity on 2023/11/17 15:39
upstream panic: runtime error: floating point error kernel 2 845d 1123d 22/28 fixed on 2023/02/24 13:50
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2025/06/03 05:25 8m retest repro android13-5.15-lts report log
2025/04/05 02:29 57m retest repro android13-5.15-lts report log
2025/01/23 21:18 10m 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=0x47b1b8]

goroutine 34 [running]:
github.com/google/syzkaller/prog.(*execContext).serializeCall(0xc003d69680, 0xc0025905a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:107 +0x2b4
github.com/google/syzkaller/prog.(*Prog).SerializeForExec(0xc00135c800)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:78 +0x1ab
github.com/google/syzkaller/pkg/rpcserver.(*Runner).sendRequest(0xc002577080, 0xc006916900)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:297 +0x22e
github.com/google/syzkaller/pkg/rpcserver.(*Runner).ConnectionLoop(0xc002577080)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:182 +0x545
github.com/google/syzkaller/pkg/rpcserver.(*server).connectionLoop(0xc002a56c60, {0x21ed940?, 0xc0021a67d0?}, 0xc002577080)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:437 +0x196
github.com/google/syzkaller/pkg/rpcserver.(*server).handleRunnerConn(0xc002a56c60, {0x21ed940, 0xc0021a67d0}, 0xc002577080, 0xc0021a6820)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:360 +0x56a
github.com/google/syzkaller/pkg/rpcserver.(*server).handleConn(0xc002a56c60, {0x21ed940, 0xc0021a67d0}, 0xc0021a6820)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:322 +0x2ab
github.com/google/syzkaller/pkg/rpcserver.(*server).Serve.func1.1({0x21ed940?, 0xc0021a67d0?}, 0x10?)
	/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@v0.13.0/errgroup/errgroup.go:79 +0x50
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 13
	/syzkaller/gopath/pkg/mod/golang.org/x/sync@v0.13.0/errgroup/errgroup.go:76 +0x96

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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.