syzbot


panic: runtime error: floating point error (2)

Status: premoderation: reported syz repro on 2023/12/27 20:43
Bug presence: origin:lts
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+7f075ca195b998c309cf@syzkaller.appspotmail.com
First crash: 509d, last: 2h50m
Fix bisection: failed (error log, bisect log)
  
Bug presence (4)
Date Name Commit Repro Result
2024/05/17 android14-6.1 (ToT) 51c421385e7a C [report] panic: runtime error: floating point error
2024/04/02 lts (merge base) 883d1a956208 C [report] go runtime error
2024/05/17 lts (merge base) 883d1a956208 C Didn't crash
2024/04/02 upstream (ToT) 026e680b0a08 C Didn't crash
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 26m 844d 0/2 upstream: reported syz repro on 2023/01/26 18:24
android-5-10 panic: runtime error: floating point error 1 1001d 1001d 0/2 auto-obsoleted due to no activity on 2022/11/21 00:58
upstream panic: runtime error: floating point error (2) syz error 20 21d 664d 0/28 upstream: reported syz repro on 2023/07/25 08:02
android-5-15 panic: runtime error: floating point error (2) origin:upstream syz 2 3h12m 130d 0/2 premoderation: reported syz repro on 2025/01/09 05:12
linux-5.15 panic: runtime error: floating point error origin:lts-only syz 1 31d 98d 0/3 upstream: reported syz repro on 2025/02/10 09:25
android-5-15 panic: runtime error: floating point error 3 853d 901d 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 1h57m 853d 0/2 premoderation: reported syz repro on 2023/01/17 08:13
android-6-1 panic: runtime error: floating point error 1 639d 639d 0/2 auto-obsoleted due to no activity on 2023/11/17 15:39
upstream panic: runtime error: floating point error kernel 2 827d 1106d 22/28 fixed on 2023/02/24 13:50
Last patch testing requests (7)
Created Duration User Patch Repo Result
2025/04/03 12:44 6m retest repro android14-6.1 report log
2025/03/10 04:11 6m retest repro android14-6.1 report log
2025/01/23 05:13 9m retest repro android14-6.1 report log
2024/12/30 00:32 6m retest repro android14-6.1 report log
2024/07/26 18:25 6m retest repro android14-6.1 report log
2024/04/24 21:49 8m retest repro android14-6.1 OK log
2024/04/24 21:49 5m retest repro android14-6.1 report log
Fix bisection attempts (2)
Created Duration User Patch Repo Result
2024/10/15 03:40 0m bisect fix android14-6.1 error job log
2024/08/27 07:28 40m bisect fix android14-6.1 OK (0) job log log

Sample crash report:
panic: runtime error: floating point error
[signal SIGFPE: floating-point exception code=0x80 addr=0x0 pc=0x47b1b8]

goroutine 35 [running]:
github.com/google/syzkaller/prog.(*execContext).serializeCall(0xc002ce1680, 0xc00259acd0)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:107 +0x2b4
github.com/google/syzkaller/prog.(*Prog).SerializeForExec(0xc000a60880)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/encodingexec.go:78 +0x1ab
github.com/google/syzkaller/pkg/rpcserver.(*Runner).sendRequest(0xc00257f8c0, 0xc006dcaf00)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:297 +0x22e
github.com/google/syzkaller/pkg/rpcserver.(*Runner).ConnectionLoop(0xc00257f8c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:182 +0x545
github.com/google/syzkaller/pkg/rpcserver.(*server).connectionLoop(0xc002c46b40, {0x21ed940?, 0xc000760410?}, 0xc00257f8c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:437 +0x196
github.com/google/syzkaller/pkg/rpcserver.(*server).handleRunnerConn(0xc002c46b40, {0x21ed940, 0xc000760410}, 0xc00257f8c0, 0xc000760460)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:360 +0x56a
github.com/google/syzkaller/pkg/rpcserver.(*server).handleConn(0xc002c46b40, {0x21ed940, 0xc000760410}, 0xc000760460)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:322 +0x2ab
github.com/google/syzkaller/pkg/rpcserver.(*server).Serve.func1.1({0x21ed940?, 0xc000760410?}, 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 30
	/syzkaller/gopath/pkg/mod/golang.org/x/sync@v0.13.0/errgroup/errgroup.go:76 +0x96

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/19 22:41 android14-6.1 228e0f23bdeb b84f0537 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf panic: runtime error: floating point error
2025/01/09 05:07 android14-6.1 7e96f2bfaa90 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf panic: runtime error: floating point error
2024/04/02 08:26 android14-6.1 f085398f0e8f 6baf5069 .config strace log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
2024/04/06 16:33 android14-6.1 60534eef4739 ca620dd8 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
2024/04/10 21:32 android14-6.1 be55946e207c 4320ec32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
2024/04/10 21:32 android14-6.1 be55946e207c 4320ec32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
2024/04/03 14:48 android14-6.1 3ca4271578e1 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
2024/03/28 01:20 android14-6.1 eef3b6e52937 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
2024/03/27 23:45 android14-6.1 eef3b6e52937 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf panic: runtime error: floating point error
2024/03/20 11:21 android14-6.1 fa6c89a93f61 a485f239 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf panic: runtime error: floating point error
2023/12/27 20:42 android14-6.1 401a2769d990 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
* Struck through repros no longer work on HEAD.