Messages in this thread | | | Date | Thu, 14 Jun 2018 05:47:03 -0700 | Subject | WARNING in input_alloc_absinfo | From | syzbot <> |
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Hello,
syzbot found the following crash on:
HEAD commit: d2d741e5d189 kmsan: add initialization for shmem pages git tree: https://github.com/google/kmsan.git/master console output: https://syzkaller.appspot.com/x/log.txt?x=1775bae7800000 kernel config: https://syzkaller.appspot.com/x/.config?x=48f9de3384bcd0f dashboard link: https://syzkaller.appspot.com/bug?extid=c382812c78d98ecd9fb8 compiler: clang version 7.0.0 (trunk 329391) syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=13b31ae7800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1733255b800000
IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+c382812c78d98ecd9fb8@syzkaller.appspotmail.com
RBP: 00000000006cb018 R08: 0000000000000001 R09: 00007ffe93080031 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 ------------[ cut here ]------------ input_alloc_absinfo(): kcalloc() failed? WARNING: CPU: 1 PID: 4498 at drivers/input/input.c:487 input_alloc_absinfo+0x183/0x190 drivers/input/input.c:487 Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 4498 Comm: syz-executor465 Not tainted 4.16.0+ #87 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 panic+0x39d/0x940 kernel/panic.c:183 __warn+0x40f/0x580 kernel/panic.c:547 report_bug+0x72a/0x880 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0x1aa/0x600 arch/x86/kernel/traps.c:297 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:316 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:986 RIP: 0010:input_alloc_absinfo+0x183/0x190 drivers/input/input.c:487 RSP: 0018:ffff88019651faa8 EFLAGS: 00010282 RAX: 0000000000000028 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 RBP: ffff88019651fae0 R08: 0000000001080020 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801a19ec140 R14: ffff88019796e198 R15: 0000000000000000 uinput_abs_setup drivers/input/misc/uinput.c:507 [inline] uinput_ioctl_handler+0x38a2/0x39f0 drivers/input/misc/uinput.c:1035 uinput_ioctl+0x9a/0xb0 drivers/input/misc/uinput.c:1047 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0xaf0/0x2440 fs/ioctl.c:686 SYSC_ioctl+0x1d2/0x260 fs/ioctl.c:701 SyS_ioctl+0x54/0x80 fs/ioctl.c:692 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x440429 RSP: 002b:00007ffe9308d2b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440429 RDX: 0000000000000000 RSI: 0000000040005504 RDI: 0000000000000003 RBP: 00000000006cb018 R08: 0000000000000001 R09: 00007ffe93080031 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
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