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: 956d, last: 121d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (4)
Date Name Commit Repro Result
2024/05/17 android14-6.1 (ToT) 51c421385e7a syz [report] panic: runtime error: floating point error
2024/04/02 lts (merge base) 883d1a956208 syz [report] go runtime error
2024/05/17 lts (merge base) 883d1a956208 syz Didn't crash
2024/04/02 upstream (ToT) 026e680b0a08 syz Didn't crash
▶ ▼ 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 447d 1291d 0/2 upstream: reported syz repro on 2023/01/26 18:24
android-5-10 panic: runtime error: floating point error 2 1 1448d 1448d 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 3d20h 1111d 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 120d 577d 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 43d 545d 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 215d 317d 0/2 upstream: reported syz repro on 2025/09/26 10:12
android-5-15 panic: runtime error: floating point error 2 3 1300d 1348d 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 7d09h 1300d 0/2 premoderation: reported syz repro on 2023/01/17 08:13
linux-6.1 panic: runtime error: floating point error origin:upstream missing-backport 2 syz inconclusive 1 421d 421d 0/3 upstream: reported syz repro on 2025/06/14 16:04
android-6-1 panic: runtime error: floating point error 2 1 1086d 1086d 0/2 auto-obsoleted due to no activity on 2023/11/17 15:39
upstream panic: runtime error: floating point error kernel 2 2 1274d 1553d 22/29 fixed on 2023/02/24 13:50
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/06/27 00:00 13m retest repro android14-6.1 log
2026/06/27 00:00 14m retest repro android14-6.1 log
2026/06/05 03:04 15m retest repro android14-6.1 log
2026/05/22 08:26 22m retest repro android14-6.1 log
2026/04/10 16:57 34m retest repro android14-6.1 report log
2026/04/08 02:00 7m retest repro android14-6.1 log
2026/03/24 16:05 22m retest repro android14-6.1 report log
2026/03/09 18:32 12m retest repro android14-6.1 report log
2026/01/30 15:31 10m retest repro android14-6.1 report log
2026/01/30 15:30 6m 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=0x121b673]

goroutine 21 [running]:
github.com/google/syzkaller/pkg/rpcserver.(*LastExecuting).Note(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/last_executing.go:43
github.com/google/syzkaller/pkg/rpcserver.(*Runner).handleExecutingMessage(0xc0022a5500, 0xc00413e660)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:384 +0x333
github.com/google/syzkaller/pkg/rpcserver.(*Runner).ConnectionLoop(0xc0022a5500)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/runner.go:203 +0x499
github.com/google/syzkaller/pkg/rpcserver.(*server).connectionLoop(0xc00128d440, {0x22b7950?, 0xc004200050?}, 0xc0022a5500)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:437 +0x196
github.com/google/syzkaller/pkg/rpcserver.(*server).handleRunnerConn(0xc00128d440, {0x22b7950, 0xc004200050}, 0xc0022a5500, 0xc0042000a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:360 +0x54a
github.com/google/syzkaller/pkg/rpcserver.(*server).handleConn(0xc00128d440, {0x22b7950, 0xc004200050}, 0xc0042000a0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpcserver/rpcserver.go:322 +0x2aa
github.com/google/syzkaller/pkg/rpcserver.(*server).Serve.func1.1({0x22b7950?, 0xc004200050?}, 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 15
	/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
2025/07/26 05:56 android14-6.1 96160a0e0aa1 fb8f743d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-1 panic: runtime error: floating point error
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.