342307 pages reserved 0 pages cma reserved Out of memory: Kill process 7172 (syz-executor2) score 1004 or sacrifice child Killed process 7172 (syz-executor2) total-vm:70472kB, anon-rss:2192kB, file-rss:32768kB, shmem-rss:0kB oom_reaper: reaped process 7172 (syz-executor2), now anon-rss:0kB, file-rss:32768kB, shmem-rss:0kB BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1338 in_atomic(): 0, irqs_disabled(): 1, pid: 5332, name: syz-fuzzer 1 lock held by syz-fuzzer/5332: #0: 00000000c37e3631 (&mm->mmap_sem){++++}, at: __do_page_fault+0x3e3/0xed0 arch/x86/mm/fault.c:1324 irq event stamp: 14167932 hardirqs last enabled at (14167931): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (14167931): [] _raw_spin_unlock_irq+0x27/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (14167932): [] syscall_return_slowpath arch/x86/entry/common.c:267 [inline] hardirqs last disabled at (14167932): [] do_syscall_64+0x311/0x820 arch/x86/entry/common.c:293 softirqs last enabled at (14167902): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (14167902): [] release_sock+0x1ec/0x2c0 net/core/sock.c:2860 softirqs last disabled at (14167900): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (14167900): [] release_sock+0x7d/0x2c0 net/core/sock.c:2847 CPU: 0 PID: 5332 Comm: syz-fuzzer Not tainted 4.19.0-rc8+ #293 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+0x1c4/0x2b4 lib/dump_stack.c:113 ___might_sleep.cold.82+0x1ba/0x1f3 kernel/sched/core.c:6143 __might_sleep+0x95/0x190 kernel/sched/core.c:6096 __do_page_fault+0x410/0xed0 arch/x86/mm/fault.c:1338 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0010:0x5 Code: Bad RIP value. RSP: 0000:ffff8801d95eff60 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000008100c907 RDX: 1ffff1003b2bd006 RSI: ffffffff8100c907 RDI: ffff8801d95e8030 RBP: 0000000000000001 R08: ffff8801d929a040 R09: ffffed0036f5406e R10: ffffed0036f5406e R11: ffff8801b7aa0377 R12: ffff8801d95f0008 R13: 1ffff1003b2bdfed R14: fffffbfff15db964 R15: ffff8801d95f0110 BUG: unable to handle kernel NULL pointer dereference at 0000000000000005 PGD 1d93c8067 P4D 1d93c8067 PUD 1d8e11067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5332 Comm: syz-fuzzer Tainted: G W 4.19.0-rc8+ #293 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:0x5 Code: Bad RIP value. RSP: 0000:ffff8801d95eff60 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000008100c907 RDX: 1ffff1003b2bd006 RSI: ffffffff8100c907 RDI: ffff8801d95e8030 RBP: 0000000000000001 R08: ffff8801d929a040 R09: ffffed0036f5406e R10: ffffed0036f5406e R11: ffff8801b7aa0377 R12: ffff8801d95f0008 R13: 1ffff1003b2bdfed R14: fffffbfff15db964 R15: ffff8801d95f0110 FS: 000000c420088ae8(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffdb CR3: 00000001d9649000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: CR2: 0000000000000005 ---[ end trace 963bf8fe3ba8cb94 ]--- RIP: 0010:0x5 Code: Bad RIP value. RSP: 0000:ffff8801d95eff60 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000008100c907 RDX: 1ffff1003b2bd006 RSI: ffffffff8100c907 RDI: ffff8801d95e8030 RBP: 0000000000000001 R08: ffff8801d929a040 R09: ffffed0036f5406e R10: ffffed0036f5406e R11: ffff8801b7aa0377 R12: ffff8801d95f0008 R13: 1ffff1003b2bdfed R14: fffffbfff15db964 R15: ffff8801d95f0110 FS: 000000c420088ae8(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffdb CR3: 00000001d9649000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400