BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1351 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 9911, name: syz-executor.2 2 locks held by syz-executor.2/9911: #0: ffffffff8b3738a0 (rcu_read_lock){....}-{1:2}, at: bpf_test_run+0x116/0xcc0 net/bpf/test_run.c:28 #1: ffff88801199eb58 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #1: ffff88801199eb58 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x25f/0xc60 arch/x86/mm/fault.c:1334 Preemption disabled at: [] migrate_disable+0x5e/0x160 kernel/sched/core.c:1753 CPU: 1 PID: 9911 Comm: syz-executor.2 Not tainted 5.11.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:120 ___might_sleep.cold+0x1f1/0x237 kernel/sched/core.c:7901 do_user_addr_fault+0x29c/0xc60 arch/x86/mm/fault.c:1351 handle_page_fault arch/x86/mm/fault.c:1450 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1506 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:580 RIP: 0010:bpf_prog_e48ebe87b99394c4+0x11/0x6c Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 66 90 55 48 89 e5 31 c0 48 8b 47 28 <48> 8b 40 00 8b 80 00 01 00 00 c9 c3 cc cc cc cc cc cc cc cc cc cc RSP: 0018:ffffc90001a2fb38 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888027a91bc0 RSI: ffffc90000eae038 RDI: ffffc90001a2fcb0 RBP: ffffc90001a2fb38 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff87324e68 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc90000eae000 bpf_prog_run_xdp include/linux/filter.h:760 [inline] bpf_test_run+0x21c/0xcc0 net/bpf/test_run.c:48 bpf_prog_test_run_xdp+0x2c2/0x4d0 net/bpf/test_run.c:646 bpf_prog_test_run kernel/bpf/syscall.c:3122 [inline] __do_sys_bpf+0x1ea9/0x4f00 kernel/bpf/syscall.c:4400 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa04b15bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219 RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a RBP: 000000000119c068 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c034 R13: 00007ffe721a6eaf R14: 00007fa04b15c9c0 R15: 000000000119c034 BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 25766067 P4D 25766067 PUD 29631067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9911 Comm: syz-executor.2 Tainted: G W 5.11.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bpf_prog_e48ebe87b99394c4+0x11/0x6c Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 66 90 55 48 89 e5 31 c0 48 8b 47 28 <48> 8b 40 00 8b 80 00 01 00 00 c9 c3 cc cc cc cc cc cc cc cc cc cc RSP: 0018:ffffc90001a2fb38 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888027a91bc0 RSI: ffffc90000eae038 RDI: ffffc90001a2fcb0 RBP: ffffc90001a2fb38 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff87324e68 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc90000eae000 FS: 00007fa04b15c700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a8c6a88160 CR3: 000000002683a000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_run_xdp include/linux/filter.h:760 [inline] bpf_test_run+0x21c/0xcc0 net/bpf/test_run.c:48 bpf_prog_test_run_xdp+0x2c2/0x4d0 net/bpf/test_run.c:646 bpf_prog_test_run kernel/bpf/syscall.c:3122 [inline] __do_sys_bpf+0x1ea9/0x4f00 kernel/bpf/syscall.c:4400 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa04b15bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219 RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a RBP: 000000000119c068 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c034 R13: 00007ffe721a6eaf R14: 00007fa04b15c9c0 R15: 000000000119c034 Modules linked in: CR2: 0000000000000000 ---[ end trace b081e7c25615ed3a ]--- RIP: 0010:bpf_prog_e48ebe87b99394c4+0x11/0x6c Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 66 90 55 48 89 e5 31 c0 48 8b 47 28 <48> 8b 40 00 8b 80 00 01 00 00 c9 c3 cc cc cc cc cc cc cc cc cc cc RSP: 0018:ffffc90001a2fb38 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888027a91bc0 RSI: ffffc90000eae038 RDI: ffffc90001a2fcb0 RBP: ffffc90001a2fb38 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff87324e68 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc90000eae000 FS: 00007fa04b15c700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000074a4d8 CR3: 000000002683a000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400