panic: runtime error: floating point error (2)

Status: premoderation: reported syz repro on 2023/01/17 08:13
Reported-by: syzbot+d4ca1bae45569415fcde@syzkaller.appspotmail.com
First crash: 1313d, last: 3d11h
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (11)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 panic: runtime error: floating point error 2 syz 6 459d 1304d 0/2 upstream: reported syz repro on 2023/01/26 18:24
android-5-10 panic: runtime error: floating point error 2 1 1460d 1460d 0/2 auto-obsoleted due to no activity on 2022/11/21 00:58
upstream panic: runtime error: floating point error (2) prio:low 2 syz error error 27 20h39m 1124d 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 error 3 133d 590d 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 56d 558d 0/3 upstream: reported syz repro on 2025/02/10 09:25
linux-6.6 panic: runtime error: floating point error origin:upstream 2 syz error 1 228d 330d 0/2 upstream: reported syz repro on 2025/09/26 10:12
android-5-15 panic: runtime error: floating point error 2 3 1313d 1361d 0/2 auto-obsoleted due to no activity on 2023/04/24 18:55
linux-6.1 panic: runtime error: floating point error origin:upstream missing-backport 2 syz inconclusive 1 434d 434d 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 134d 969d 0/2 premoderation: reported syz repro on 2023/12/27 20:43
android-6-1 panic: runtime error: floating point error 2 1 1099d 1099d 0/2 auto-obsoleted due to no activity on 2023/11/17 15:39
upstream panic: runtime error: floating point error kernel 2 2 1287d 1566d 22/29 fixed on 2023/02/24 13:50
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/08/19 13:05 9m retest repro android13-5.10-lts report job log log
2026/08/02 17:11 14m retest repro android13-5.10-lts report log
2026/06/26 15:24 12m retest repro android13-5.10-lts log
2026/06/26 15:24 1h58m retest repro android13-5.10-lts log
2026/06/02 13:14 12m retest repro android13-5.10-lts log
2026/05/14 19:45 18m retest repro android13-5.10-lts report log
2026/04/11 13:39 9m retest repro android13-5.10-lts report log
2026/04/11 13:39 6m retest repro android13-5.10-lts report log
2026/03/17 00:56 5m retest repro android13-5.10-lts report log
2026/03/02 07:12 5m retest repro android13-5.10-lts report log

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

goroutine 33 [running]:
github.com/google/syzkaller/prog.foreachArgImpl({0x22b81c0, 0xc003cbc630}, 0x134d6a0?, 0xc0054ba000, 0xc003ced5e8)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/analysis.go:165 +0x299
github.com/google/syzkaller/prog.ForeachArg(0xc0024897c0, 0xc003ced5e8)
	/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(0xc003ced680, 0xc0024897c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:119 +0x4b5
github.com/google/syzkaller/prog.(*Prog).SerializeForExec(0xc001f18c40)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:78 +0x1a8
github.com/google/syzkaller/pkg/rpcserver.(*Runner).sendRequest(0xc0024735c0, 0xc0054b60c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:297 +0x22b
github.com/google/syzkaller/pkg/rpcserver.(*Runner).ConnectionLoop(0xc0024735c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:182 +0x53e
github.com/google/syzkaller/pkg/rpcserver.(*server).connectionLoop(0xc0006f97a0, {0x22b4ef0?, 0xc0024899f0?}, 0xc0024735c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:437 +0x196
github.com/google/syzkaller/pkg/rpcserver.(*server).handleRunnerConn(0xc0006f97a0, {0x22b4ef0, 0xc0024899f0}, 0xc0024735c0, 0xc002489a40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:360 +0x54a
github.com/google/syzkaller/pkg/rpcserver.(*server).handleConn(0xc0006f97a0, {0x22b4ef0, 0xc0024899f0}, 0xc002489a40)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:322 +0x2aa
github.com/google/syzkaller/pkg/rpcserver.(*server).Serve.func1.1({0x22b4ef0?, 0xc0024899f0?}, 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 29
	/syzkaller/gopath/pkg/mod/golang.org/x/sync@v0.16.0/errgroup/errgroup.go:78 +0x93

Crashes (12):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/17 23:20 android13-5.10-lts 6de38b5f6c2b 0d1223f1 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10 panic: runtime error: floating point error
2025/05/19 23:35 android13-5.10-lts 7e2543346ff7 b84f0537 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf panic: runtime error: floating point error
2025/04/08 01:03 android13-5.10-lts 094fc3778d6b a2ada0e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10 panic: runtime error: floating point error
2023/01/17 08:12 android12-5.10-lts 416c4356f372 a63719e7 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-5-10 panic: runtime error: floating point error
2025/01/09 21:41 android13-5.10-lts 49e8ba0a684f 9220929f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf panic: runtime error: floating point error
2024/04/12 07:19 android13-5.10-lts 4e1bc8d8e8ae 27de0a5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 panic: runtime error: floating point error
2024/04/06 15:59 android13-5.10-lts e7daca75b4c3 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf panic: runtime error: floating point error
2024/04/03 03:10 android13-5.10-lts e7daca75b4c3 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf panic: runtime error: floating point error
2024/03/31 09:04 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf panic: runtime error: floating point error
2024/03/23 00:41 android13-5.10-lts e7daca75b4c3 4b6cdce6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf panic: runtime error: floating point error
2024/01/11 00:30 android13-5.10-lts 721689706261 04815ef1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 panic: runtime error: floating point error
2023/12/16 14:58 android13-5.10-lts f722f6ad16cf 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 panic: runtime error: floating point error
* Struck through repros no longer work on HEAD.