Hello,
syzbot found the following issue on:
HEAD commit: cbfa1702 Linux 4.14.198
git tree: linux-4.14.y
console output:
https://syzkaller.appspot.com/x/log.txt?x=127e49c0500000
kernel config:
https://syzkaller.appspot.com/x/.config?x=3990958d85b55e59
dashboard link:
https://syzkaller.appspot.com/bug?extid=0a4b4bdcf93b75a474e5
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+0a4b4b...@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 0 PID: 23310 at net/mac80211/ieee80211_i.h:1408 ieee80211_get_sband net/mac80211/ieee80211_i.h:1408 [inline]
WARNING: CPU: 0 PID: 23310 at net/mac80211/ieee80211_i.h:1408 sta_info_alloc+0x1299/0x16e0 net/mac80211/sta_info.c:403
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 23310 Comm: syz-executor.4 Not tainted 4.14.198-syzkaller #0
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+0x1b2/0x283 lib/dump_stack.c:58
panic+0x1f9/0x42d kernel/panic.c:183
__warn.cold+0x20/0x4b kernel/panic.c:547
report_bug+0x208/0x249 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:ieee80211_get_sband net/mac80211/ieee80211_i.h:1408 [inline]
RIP: 0010:sta_info_alloc+0x1299/0x16e0 net/mac80211/sta_info.c:403
RSP: 0018:ffff88804f96f5d8 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90005b60000
RDX: 000000000000080a RSI: ffffffff8603d369 RDI: 0000000000000286
RBP: ffff88804f1ea0e0 R08: 0000000000000000 R09: 0000000000020012
R10: ffff88809ebbcfc0 R11: ffff88809ebbc6c0 R12: ffff888054736c00
R13: ffff88805a7b9f40 R14: ffff888054737188 R15: ffff888054737010
ieee80211_add_station+0x223/0x550 net/mac80211/cfg.c:1422
rdev_add_station net/wireless/rdev-ops.h:176 [inline]
nl80211_new_station+0xb4e/0x1290 net/wireless/nl80211.c:5256
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313
netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45de89
RSP: 002b:00007fa19a931c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002ba80 RCX: 000000000045de89
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffc81c55f8f R14: 00007fa19a9329c0 R15: 000000000118bf2c
Kernel Offset: disabled
Rebooting in 86400 seconds..
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