random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 4470 Comm: syz-executor977 Not tainted 4.18.0-rc3+ #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:perf_trace_lock_acquire+0xc8/0x9a0 include/trace/events/lock.h:13 Code: 20 f2 f2 f2 f2 c7 40 24 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8d 46 18 48 89 85 70 fe ff ff 48 c1 e8 03 <80> 3c 10 00 0f 85 8a 05 00 00 49 8b 79 18 48 85 ff 0f 84 72 04 00 RSP: 0018:ffff8801abc6f508 EFLAGS: 00010002 RAX: 000000000000004c RBX: 1ffff1003578deab RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000248 RDI: ffffffff88f7b740 RBP: ffff8801abc6f6e0 R08: 0000000000000000 R09: 0000000000000248 R10: ffffffff815dfe10 R11: dffffc0000000000 R12: ffff8801abc6f6b8 R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff88f7b740 FS: 00007f4eda941700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005602499e5aa8 CR3: 00000001ac5f7000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x3a2/0x540 kernel/locking/lockdep.c:3923 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168 spin_lock_bh include/linux/spinlock.h:315 [inline] smap_list_hash_remove+0xa3/0x470 kernel/bpf/sockmap.c:1683 sock_hash_ctx_update_elem.isra.27+0x1140/0x1690 kernel/bpf/sockmap.c:2384 sock_hash_update_elem+0x157/0x2f0 kernel/bpf/sockmap.c:2418 map_update_elem+0x5c4/0xc90 kernel/bpf/syscall.c:765 __do_sys_bpf kernel/bpf/syscall.c:2296 [inline] __se_sys_bpf kernel/bpf/syscall.c:2267 [inline] __x64_sys_bpf+0x32d/0x510 kernel/bpf/syscall.c:2267 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x445919 Code: e8 3c b6 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4eda940db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 0000000000445919 RDX: 0000000000000020 RSI: 0000000020000180 RDI: 0000000000000002 RBP: 00000000006dac50 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7c977ddf R14: 00007f4eda9419c0 R15: 0000000000000009 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace a1da761be7e47307 ]--- RIP: 0010:perf_trace_lock_acquire+0xc8/0x9a0 include/trace/events/lock.h:13 Code: 20 f2 f2 f2 f2 c7 40 24 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8d 46 18 48 89 85 70 fe ff ff 48 c1 e8 03 <80> 3c 10 00 0f 85 8a 05 00 00 49 8b 79 18 48 85 ff 0f 84 72 04 00 RSP: 0018:ffff8801abc6f508 EFLAGS: 00010002 RAX: 000000000000004c RBX: 1ffff1003578deab RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000248 RDI: ffffffff88f7b740 RBP: ffff8801abc6f6e0 R08: 0000000000000000 R09: 0000000000000248 R10: ffffffff815dfe10 R11: dffffc0000000000 R12: ffff8801abc6f6b8 R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff88f7b740 FS: 00007f4eda941700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005602499e5aa8 CR3: 00000001ac5f7000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400