BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1253 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 3878, name: systemd-journal INFO: lockdep is turned off. irq event stamp: 1715382 hardirqs last enabled at (1715381): [] kmem_cache_free+0xbe/0xf0 mm/slab.c:3695 hardirqs last disabled at (1715382): [] __syscall_return_slowpath+0x52/0x180 arch/x86/entry/common.c:328 softirqs last enabled at (1699554): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 softirqs last disabled at (1699533): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 CPU: 1 PID: 3878 Comm: systemd-journal Not tainted 5.8.0-rc3-syzkaller #0 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+0x1f0/0x31e lib/dump_stack.c:118 ___might_sleep+0x3c0/0x570 kernel/sched/core.c:6899 do_user_addr_fault+0x377/0xba0 arch/x86/mm/fault.c:1253 handle_page_fault arch/x86/mm/fault.c:1365 [inline] exc_page_fault+0x124/0x1f0 arch/x86/mm/fault.c:1418 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565 RIP: 0010:__prepare_exit_to_usermode+0x52/0x1e0 arch/x86/entry/common.c:240 Code: 24 50 15 00 00 0f 85 8f 01 00 00 f0 41 80 64 24 03 7f 83 3d 9f e9 6c 08 00 74 23 41 83 bc 24 cc 08 00 00 00 75 18 41 83 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc90001617f10 EFLAGS: 00010006 RAX: 0000000000000100 RBX: 0000000000000015 RCX: ffff8880928403c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90001617f58 RBP: 0000000000000000 R08: ffffffff817a2250 R09: 0000000000000005 R10: ffffffff88400000 R11: ffffffff8840080c R12: ffff8880928403c0 R13: 0000000000000000 R14: ffffc90001617f58 R15: ffffc90001617f58 do_syscall_64+0x7f/0xe0 arch/x86/entry/common.c:368 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd8569ab9c7 Code: Bad RIP value. RSP: 002b:00007ffd1c499868 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: 0000000000000000 RBX: 00007ffd1c49c780 RCX: 00007fd8569ab9c7 RDX: 00007fd85741ca00 RSI: 0000000000000000 RDI: 000055bb3dea29a3 RBP: 00007ffd1c4998a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffd1c49c780 R15: 00007ffd1c499d90 BUG: kernel NULL pointer dereference, address: 0000000000000100 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#2] PREEMPT SMP KASAN CPU: 1 PID: 3878 Comm: systemd-journal Tainted: G D W 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__prepare_exit_to_usermode+0x52/0x1e0 arch/x86/entry/common.c:240 Code: 24 50 15 00 00 0f 85 8f 01 00 00 f0 41 80 64 24 03 7f 83 3d 9f e9 6c 08 00 74 23 41 83 bc 24 cc 08 00 00 00 75 18 41 83 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc90001617f10 EFLAGS: 00010006 RAX: 0000000000000100 RBX: 0000000000000015 RCX: ffff8880928403c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90001617f58 RBP: 0000000000000000 R08: ffffffff817a2250 R09: 0000000000000005 R10: ffffffff88400000 R11: ffffffff8840080c R12: ffff8880928403c0 R13: 0000000000000000 R14: ffffc90001617f58 R15: ffffc90001617f58 FS: 00007fd8576ef8c0(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000100 CR3: 00000000928f0000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_syscall_64+0x7f/0xe0 arch/x86/entry/common.c:368 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd8569ab9c7 Code: Bad RIP value. RSP: 002b:00007ffd1c499868 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: 0000000000000000 RBX: 00007ffd1c49c780 RCX: 00007fd8569ab9c7 RDX: 00007fd85741ca00 RSI: 0000000000000000 RDI: 000055bb3dea29a3 RBP: 00007ffd1c4998a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffd1c49c780 R15: 00007ffd1c499d90 Modules linked in: CR2: 0000000000000100 ---[ end trace 769b893400c95de2 ]--- RIP: 0010:__prepare_exit_to_usermode+0x52/0x1e0 arch/x86/entry/common.c:240 Code: 24 50 15 00 00 0f 85 8f 01 00 00 f0 41 80 64 24 03 7f 83 3d 9f e9 6c 08 00 74 23 41 83 bc 24 cc 08 00 00 00 75 18 41 83 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc90007b7ff10 EFLAGS: 00010006 RAX: 0000000000004000 RBX: 0000000000000023 RCX: ffff8880446ac180 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90007b7ff58 RBP: 0000000000000000 R08: ffffffff817a2250 R09: fffffbfff170b2fb R10: fffffbfff170b2fb R11: 0000000000000000 R12: ffff8880446ac180 R13: 0000000000000000 R14: ffffc90007b7ff58 R15: ffffc90007b7ff58 FS: 00007fd8576ef8c0(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000100 CR3: 00000000928f0000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400