On Tue, Oct 06, 2020 at 01:08:23AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 549738f1 Linux 5.9-rc8 > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=15b97ba3900000 > kernel config: https://syzkaller.appspot.com/x/.config?x=c06bcf3cc963d91c > dashboard link: https://syzkaller.appspot.com/bug?extid=45d7c243c006f39dc55a > compiler: gcc (GCC) 10.1.0-syz 20200507 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12bae9c0500000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1099b1c0500000 > > The issue was bisected to: > > commit 643c332d519bdfbf80d21f40d1c0aa0ccf3ec1cb > Author: Zi Shen Lim <zlim.lnx@xxxxxxxxx> > Date: Thu Jun 9 04:18:50 2016 +0000 > > arm64: bpf: optimize LD_ABS, LD_IND > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11d44477900000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=13d44477900000 > console output: https://syzkaller.appspot.com/x/log.txt?x=15d44477900000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+45d7c243c006f39dc55a@xxxxxxxxxxxxxxxxxxxxxxxxx > Fixes: 643c332d519b ("arm64: bpf: optimize LD_ABS, LD_IND") > > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 6879 at net/mac80211/ieee80211_i.h:1447 ieee80211_get_sband net/mac80211/ieee80211_i.h:1447 [inline] > WARNING: CPU: 0 PID: 6879 at net/mac80211/ieee80211_i.h:1447 sta_info_alloc+0x1900/0x1f90 net/mac80211/sta_info.c:469 > Kernel panic - not syncing: panic_on_warn set ... > CPU: 0 PID: 6879 Comm: syz-executor071 Not tainted 5.9.0-rc8-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x198/0x1fd lib/dump_stack.c:118 > panic+0x382/0x7fb kernel/panic.c:231 > __warn.cold+0x20/0x4b kernel/panic.c:600 > report_bug+0x1bd/0x210 lib/bug.c:198 > handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 > exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 > asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 > RIP: 0010:ieee80211_get_sband net/mac80211/ieee80211_i.h:1447 [inline] The patch fingered by the bisection only affects arm64, but this is an x86 box. So this is clearly bogus. Will
