syzbot


WARNING in __switch_to

Status: fixed on 2017/10/24 07:07
Subsystems: kernel
[Documentation on labels]
Fix commit: 814fb7bb7db5 x86/fpu: Don't let userspace set bogus xcomp_bv
First crash: 2550d, last: 2484d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 WARNING in __switch_to C 54 2476d 2544d 1/3 fixed on 2017/10/23 20:15
upstream WARNING in __switch_to (2) kernel C 4 2386d 2384d 0/27 closed as invalid on 2018/01/31 05:42

Sample crash report:
WARNING: CPU: 1 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:373 load_gs_index arch/x86/include/asm/paravirt.h:21 [inline]
WARNING: CPU: 1 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:373 loadseg arch/x86/kernel/process_64.c:215 [inline]
WARNING: CPU: 1 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:373 load_seg_legacy arch/x86/kernel/process_64.c:236 [inline]
WARNING: CPU: 1 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:373 __switch_to+0xfbc/0x1310 arch/x86/kernel/process_64.c:457
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.0-rc2+ #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (535):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/09/25 22:38 upstream e19b205be43d c26ea367 .config console log report syz C ci-upstream-kasan-gce
2017/09/25 18:25 upstream e19b205be43d c26ea367 .config console log report syz C ci-upstream-kasan-gce
2017/08/21 00:28 upstream 7f680d7ec315 f238fbd4 .config console log report syz C ci-upstream-kasan-gce
2017/08/19 12:39 upstream 58d4e450a490 f238fbd4 .config console log report syz C ci-upstream-kasan-gce
2017/08/19 01:23 upstream 58d4e450a490 f238fbd4 .config console log report syz C ci-upstream-kasan-gce
2017/07/22 21:18 upstream 82abbea734d6 d67f590c .config console log report syz C ci-upstream-kasan-gce
2017/09/27 01:14 upstream e365806ac289 c26ea367 .config console log report syz C ci-upstream-kasan-gce-386
2017/09/21 16:57 upstream 4a704d6db0ee c26ea367 .config console log report syz C ci-upstream-kasan-gce-386
2017/09/22 05:06 mmots 720bbe532b7c c26ea367 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/09/21 16:52 linux-next 43ec4ba69622 c26ea367 .config console log report syz C ci-upstream-next-kasan-gce
2017/09/15 04:43 mmots 720bbe532b7c c26ea367 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/09/13 20:23 mmots 114c278181ca 96b8e399 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/09/19 16:56 upstream 12fcf66e74b1 d394531e .config console log report ci-upstream-kasan-gce-386
2017/09/13 09:53 mmots 114c278181ca 96b8e399 .config console log report ci-upstream-mmots-kasan-gce
2017/09/12 16:26 mmots 114c278181ca 96b8e399 .config console log report ci-upstream-mmots-kasan-gce
2017/09/12 13:14 mmots 114c278181ca 96b8e399 .config console log report ci-upstream-mmots-kasan-gce
2017/09/12 11:25 mmots 114c278181ca 96b8e399 .config console log report ci-upstream-mmots-kasan-gce
2017/09/12 11:09 mmots 114c278181ca 96b8e399 .config console log report ci-upstream-mmots-kasan-gce
2017/09/12 01:53 mmots 114c278181ca 96b8e399 .config console log report ci-upstream-mmots-kasan-gce
2017/09/11 18:01 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/11 09:13 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/10 20:11 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/10 07:48 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/08 21:37 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/08 20:24 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/08 17:20 mmots d95e159cd1da 449b6f15 .config console log report ci-upstream-mmots-kasan-gce
2017/09/06 05:14 mmots c97efd59aceb 0ed1da4a .config console log report ci-upstream-mmots-kasan-gce
2017/09/06 03:08 mmots c97efd59aceb 0ed1da4a .config console log report ci-upstream-mmots-kasan-gce
2017/09/06 03:07 mmots c97efd59aceb 0ed1da4a .config console log report ci-upstream-mmots-kasan-gce
2017/09/06 02:52 mmots c97efd59aceb 0ed1da4a .config console log report ci-upstream-mmots-kasan-gce
2017/08/11 21:41 linux-next 91dfed74eabc 360f0528 .config console log report ci-upstream-next-kasan-gce
2017/08/11 21:34 linux-next 91dfed74eabc 360f0528 .config console log report ci-upstream-next-kasan-gce
* Struck through repros no longer work on HEAD.