On Wed, Jun 19, 2019 at 5:57 PM syzbot <syzbot+037e18398ba8c655a652@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: 29f785ff Merge branch 'fixes' of git://git.kernel.org/pub/.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=10539ceaa00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=e5c77f8090a3b96b > dashboard link: https://syzkaller.appspot.com/bug?extid=037e18398ba8c655a652 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16da8cc9a00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+037e18398ba8c655a652@xxxxxxxxxxxxxxxxxxxxxxxxx The same bpf plague bug... +bpf mailing list > kernel tried to execute NX-protected page - exploit attempt? (uid: 0) > BUG: unable to handle page fault for address: ffff88807a92fb10 > #PF: supervisor instruction fetch in kernel mode > #PF: error_code(0x0011) - permissions violation > PGD b401067 P4D b401067 PUD 80000000400001e3 > Thread overran stack, or stack corrupted > Oops: 0011 [#1] PREEMPT SMP KASAN > CPU: 1 PID: 9205 Comm: syz-executor.0 Not tainted 5.2.0-rc5+ #2 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > RIP: 0010:0xffff88807a92fb10 > Code: ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff ff ff 40 8c f0 89 80 > 88 ff ff 00 00 00 00 00 00 00 00 a0 a9 1d 8b ff ff ff ff <40> fb 92 7a 80 > 88 ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff > RSP: 0018:ffff8880ae909e10 EFLAGS: 00010006 > RAX: ffff88807a92fb10 RBX: 0000000000000000 RCX: ffffffff816162e2 > RDX: 0000000000010000 RSI: ffffffff81615cdf RDI: ffff88807a92fab8 > RBP: ffff8880ae909f08 R08: ffff888092914180 R09: ffffed1015d26c70 > R10: ffffed1015d26c6f R11: ffff8880ae93637b R12: ffff8880ae926d80 > R13: ffffffff8b1da9a0 R14: ffff88807a92fab8 R15: dffffc0000000000 > FS: 0000555557401940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: ffff88807a92fb10 CR3: 000000009016a000 CR4: 00000000001406e0 > Call Trace: > <IRQ> > hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 > local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline] > smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1066 > apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 > </IRQ> > Modules linked in: > CR2: ffff88807a92fb10 > ---[ end trace f7934f1b1fe3f476 ]--- > RIP: 0010:0xffff88807a92fb10 > Code: ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff ff ff 40 8c f0 89 80 > 88 ff ff 00 00 00 00 00 00 00 00 a0 a9 1d 8b ff ff ff ff <40> fb 92 7a 80 > 88 ff ff 15 b8 0d 86 ff ff ff ff 00 b5 0d 86 ff ff > RSP: 0018:ffff8880ae909e10 EFLAGS: 00010006 > RAX: ffff88807a92fb10 RBX: 0000000000000000 RCX: ffffffff816162e2 > RDX: 0000000000010000 RSI: ffffffff81615cdf RDI: ffff88807a92fab8 > RBP: ffff8880ae909f08 R08: ffff888092914180 R09: ffffed1015d26c70 > R10: ffffed1015d26c6f R11: ffff8880ae93637b R12: ffff8880ae926d80 > R13: ffffffff8b1da9a0 R14: ffff88807a92fab8 R15: dffffc0000000000 > FS: 0000555557401940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: ffff88807a92fb10 CR3: 000000009016a000 CR4: 00000000001406e0 > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/0000000000001c03bf058baf488a%40google.com. > For more options, visit https://groups.google.com/d/optout.
