BUG: unable to handle page fault for address: ffffffffff600000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD ce91067 P4D ce91067 PUD ce93067 PMD ceb6067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.1.62-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: events free_work RIP: 0010:copy_from_kernel_nofault+0x7d/0x2c0 mm/maccess.c:36 Code: 01 84 c0 0f 85 e1 01 00 00 41 ff 06 bf 07 00 00 00 4c 89 ee e8 14 d1 d0 ff 49 83 fd 07 76 58 4c 89 fb 49 83 c7 08 49 83 c5 f8 <49> 8b 2c 24 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 RSP: 0018:ffffc90000a1fa20 EFLAGS: 00010257 RAX: 0000000000000000 RBX: ffffc90000a1fa88 RCX: ffff88801341bb80 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007 RBP: ffffc90000a1fa90 R08: ffffffff81b9c13c R09: fffffbfff2091845 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000 R13: 0000000000000000 R14: ffff88801341d2f0 R15: ffffc90000a1fa90 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000000ce8e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_probe_read_kernel_common kernel/trace/bpf_trace.c:230 [inline] ____bpf_probe_read_kernel kernel/trace/bpf_trace.c:239 [inline] bpf_probe_read_kernel+0x26/0x70 kernel/trace/bpf_trace.c:236 bpf_prog_bd8b22826c103b08+0x3a/0x3c bpf_dispatcher_nop_func include/linux/bpf.h:970 [inline] __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run include/linux/filter.h:607 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline] bpf_trace_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2314 __bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:94 trace_kfree include/trace/events/kmem.h:94 [inline] kfree+0xf6/0x190 mm/slab_common.c:994 __vunmap+0x8d9/0x9a0 mm/vmalloc.c:2722 free_work+0x57/0x80 mm/vmalloc.c:97 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: CR2: ffffffffff600000 ---[ end trace 0000000000000000 ]--- RIP: 0010:copy_from_kernel_nofault+0x7d/0x2c0 mm/maccess.c:36 Code: 01 84 c0 0f 85 e1 01 00 00 41 ff 06 bf 07 00 00 00 4c 89 ee e8 14 d1 d0 ff 49 83 fd 07 76 58 4c 89 fb 49 83 c7 08 49 83 c5 f8 <49> 8b 2c 24 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 RSP: 0018:ffffc90000a1fa20 EFLAGS: 00010257 RAX: 0000000000000000 RBX: ffffc90000a1fa88 RCX: ffff88801341bb80 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007 RBP: ffffc90000a1fa90 R08: ffffffff81b9c13c R09: fffffbfff2091845 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000 R13: 0000000000000000 R14: ffff88801341d2f0 R15: ffffc90000a1fa90 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600000 CR3: 000000000ce8e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 01 84 c0 0f 85 e1 01 add %eax,0x1e1850f(%rax,%rax,8) 7: 00 00 add %al,(%rax) 9: 41 ff 06 incl (%r14) c: bf 07 00 00 00 mov $0x7,%edi 11: 4c 89 ee mov %r13,%rsi 14: e8 14 d1 d0 ff call 0xffd0d12d 19: 49 83 fd 07 cmp $0x7,%r13 1d: 76 58 jbe 0x77 1f: 4c 89 fb mov %r15,%rbx 22: 49 83 c7 08 add $0x8,%r15 26: 49 83 c5 f8 add $0xfffffffffffffff8,%r13 * 2a: 49 8b 2c 24 mov (%r12),%rbp <-- trapping instruction 2e: 48 89 d8 mov %rbx,%rax 31: 48 c1 e8 03 shr $0x3,%rax 35: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 3c: fc ff df 3f: 80 .byte 0x80