RDX: 0000000000000048 RSI: 0000200000000000 RDI: 0000000000000000 RBP: 00007f751fd362a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f751fecdfa0 R15: 00007ffe549a4458 ---[ end trace 79d92947778b0707 ]--- kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1238 Comm: syz.1.229 Tainted: G W 5.4.290-syzkaller-00002-g41adfeb3d639 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:pcpu_get_page_chunk mm/percpu.c:253 [inline] RIP: 0010:pcpu_chunk_addr_search mm/percpu.c:1568 [inline] RIP: 0010:free_percpu+0x26d/0x910 mm/percpu.c:1972 Code: e8 03 42 80 3c 30 00 74 08 48 89 df e8 8c d5 0c 00 48 8b 3b 48 01 ef e8 61 63 07 00 48 89 c3 48 83 c3 20 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 64 d5 0c 00 4c 8b 23 4d 8d 7c 24 RSP: 0018:ffff8881e1b67868 EFLAGS: 00010002 RAX: 0000000000000004 RBX: 0000000000000020 RCX: 0000000000080000 RDX: ffffc90000940000 RSI: 000000000001b88f RDI: 000000000001b890 RBP: ffff88817ad3eea0 R08: ffffffff818ec476 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88823fe9f5c0 R13: ffffffff83f3eea0 R14: dffffc0000000000 R15: ffff88817ad3eea0 FS: 00007f751e31f6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000028e97f CR3: 00000001e4a66000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: dev_map_free+0x2db/0x630 kernel/bpf/devmap.c:241 map_create kernel/bpf/syscall.c:639 [inline] __do_sys_bpf kernel/bpf/syscall.c:2873 [inline] __se_sys_bpf+0x33f2/0xbcb0 kernel/bpf/syscall.c:2849 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7f751fcb5169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f751e31f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f751fecdfa0 RCX: 00007f751fcb5169 RDX: 0000000000000048 RSI: 0000200000000000 RDI: 0000000000000000 RBP: 00007f751fd362a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f751fecdfa0 R15: 00007ffe549a4458 Modules linked in: ---[ end trace 79d92947778b0708 ]--- RIP: 0010:pcpu_get_page_chunk mm/percpu.c:253 [inline] RIP: 0010:pcpu_chunk_addr_search mm/percpu.c:1568 [inline] RIP: 0010:free_percpu+0x26d/0x910 mm/percpu.c:1972 Code: e8 03 42 80 3c 30 00 74 08 48 89 df e8 8c d5 0c 00 48 8b 3b 48 01 ef e8 61 63 07 00 48 89 c3 48 83 c3 20 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 64 d5 0c 00 4c 8b 23 4d 8d 7c 24 RSP: 0018:ffff8881e1b67868 EFLAGS: 00010002 RAX: 0000000000000004 RBX: 0000000000000020 RCX: 0000000000080000 RDX: ffffc90000940000 RSI: 000000000001b88f RDI: 000000000001b890 RBP: ffff88817ad3eea0 R08: ffffffff818ec476 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88823fe9f5c0 R13: ffffffff83f3eea0 R14: dffffc0000000000 R15: ffff88817ad3eea0 FS: 00007f751e31f6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000028e97f CR3: 00000001e4a66000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: e8 03 42 80 3c call 0x3c804208 5: 30 00 xor %al,(%rax) 7: 74 08 je 0x11 9: 48 89 df mov %rbx,%rdi c: e8 8c d5 0c 00 call 0xcd59d 11: 48 8b 3b mov (%rbx),%rdi 14: 48 01 ef add %rbp,%rdi 17: e8 61 63 07 00 call 0x7637d 1c: 48 89 c3 mov %rax,%rbx 1f: 48 83 c3 20 add $0x20,%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 64 d5 0c 00 call 0xcd59d 39: 4c 8b 23 mov (%rbx),%r12 3c: 4d rex.WRB 3d: 8d .byte 0x8d 3e: 7c 24 jl 0x64