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panic: runtime error: floating point error

Status: upstream: reported syz repro on 2023/01/26 18:24
Reported-by: syzbot+55dff8071a101f291217@syzkaller.appspotmail.com
First crash: 896d, last: 51d
▶ ▼ Similar bugs (10)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 panic: runtime error: floating point error 2 1 1052d 1052d 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 24 12d 716d 0/29 upstream: reported syz repro on 2023/07/25 08:02
android-5-15 panic: runtime error: floating point error (2) origin:upstream 2 syz 2 37d 182d 0/2 premoderation: reported syz repro on 2025/01/09 05:12
linux-5.15 panic: runtime error: floating point error origin:lts-only 2 syz inconclusive 2 5d00h 150d 0/3 upstream: reported syz repro on 2025/02/10 09:25
android-5-15 panic: runtime error: floating point error 2 3 905d 952d 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 11 6d13h 905d 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 26d 26d 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 11 20d 561d 0/2 premoderation: reported syz repro on 2023/12/27 20:43
android-6-1 panic: runtime error: floating point error 2 1 691d 691d 0/2 auto-obsoleted due to no activity on 2023/11/17 15:39
upstream panic: runtime error: floating point error kernel 2 2 879d 1158d 22/29 fixed on 2023/02/24 13:50
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/06/15 22:53 18m retest repro android12-5.4 error
2025/06/15 22:53 19m retest repro android12-5.4 error
2025/06/15 22:53 14m retest repro android12-5.4 error
2025/06/03 01:48 12m retest repro android12-5.4 error
2025/04/06 01:19 6m retest repro android12-5.4 report log
2025/04/06 01:19 5m retest repro android12-5.4 report log
2025/04/06 01:19 6m retest repro android12-5.4 report log
2025/01/25 21:14 7m retest repro android12-5.4 report log
2025/01/25 21:14 5m retest repro android12-5.4 report log
2025/01/25 21:14 6m retest repro android12-5.4 report log

Sample crash report:
2025/05/20 00:37:49 executed programs: 293
panic: runtime error: floating point error
[signal SIGFPE: floating-point exception code=0x80 addr=0x0 pc=0xf008b0]

goroutine 26 [running]:
github.com/google/syzkaller/prog.foreachArgImpl({0x21f0980, 0xc0021a1d70}, 0x12ccd20?, 0xc0060aa000, 0xc0027135e8)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:165 +0x2b0
github.com/google/syzkaller/prog.ForeachArg(0xc001a919a0, 0xc0027135e8)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:146 +0x51
github.com/google/syzkaller/prog.(*execContext).writeCopyout(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:235
github.com/google/syzkaller/prog.(*execContext).serializeCall(0xc002713680, 0xc001a919a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:119 +0x4b5
github.com/google/syzkaller/prog.(*Prog).SerializeForExec(0xc000946b00)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:78 +0x1ab
github.com/google/syzkaller/pkg/rpcserver.(*Runner).sendRequest(0xc0014e2b40, 0xc006051d40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:297 +0x22e
github.com/google/syzkaller/pkg/rpcserver.(*Runner).ConnectionLoop(0xc0014e2b40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:182 +0x545
github.com/google/syzkaller/pkg/rpcserver.(*server).connectionLoop(0xc002146c60, {0x21ed940?, 0xc001a91cc0?}, 0xc0014e2b40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:437 +0x196
github.com/google/syzkaller/pkg/rpcserver.(*server).handleRunnerConn(0xc002146c60, {0x21ed940, 0xc001a91cc0}, 0xc0014e2b40, 0xc001a91d10)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:360 +0x56a
github.com/google/syzkaller/pkg/rpcserver.(*server).handleConn(0xc002146c60, {0x21ed940, 0xc001a91cc0}, 0xc001a91d10)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:322 +0x2ab
github.com/google/syzkaller/pkg/rpcserver.(*server).Serve.func1.1({0x21ed940?, 0xc001a91cc0?}, 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@v0.13.0/errgroup/errgroup.go:79 +0x50
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 10
	/syzkaller/gopath/pkg/mod/golang.org/x/sync@v0.13.0/errgroup/errgroup.go:76 +0x96

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/20 01:06 android12-5.4 cd8e74fa0fa3 b84f0537 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan panic: runtime error: floating point error
2024/04/02 05:40 android12-5.4 d0d34dcb02cc 6baf5069 .config strace log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan panic: runtime error: floating point error
2023/04/29 06:24 android12-5.4 d5ed2ca98e48 62df2017 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan panic: runtime error: floating point error
2023/01/26 18:23 android12-5.4 0ed90f62b184 9dfcf09c .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan panic: runtime error: floating point error
2024/04/06 04:29 android12-5.4 d0d34dcb02cc ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan panic: runtime error: floating point error
2024/03/22 05:18 android12-5.4 43a5ead9254d 7a239ce7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan panic: runtime error: floating point error
* Struck through repros no longer work on HEAD.