BUG: unable to handle page fault for address: fffffffffffffff1 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 70b1067 P4D 70b1067 PUD 70b3067 PMD 0 Oops: Oops: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 1193 Comm: syz.2.253 Not tainted 6.16.0-rc3-syzkaller-00306-gaaf724ed6926 #0 PREEMPT fae56c32fc209c7c61071dc2d94311b90782b0fd Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:filemap_read_folio+0xd9/0x2b0 mm/filemap.c:2412 Code: 44 24 40 00 00 00 00 48 81 e3 00 02 00 00 0f 85 85 01 00 00 e8 18 b5 c6 ff 48 8b 7c 24 18 4c 89 f6 4d 89 fb 41 ba 21 19 0d d3 <45> 03 53 f1 74 02 0f 0b 2e e8 ed eb 21 1e 41 89 c7 31 ff 44 89 fe RSP: 0018:ffffc900023e7920 EFLAGS: 00010293 RAX: ffffffff81de38e8 RBX: 0000000000000000 RCX: ffff888120815640 RDX: 0000000000000000 RSI: ffffea0004d47fc0 RDI: ffff88810f754f00 RBP: ffffc900023e79d8 R08: ffffea0004d47fc7 R09: 1ffffd40009a8ff8 R10: 00000000d30d1921 R11: 0000000000000000 R12: 1ffff9200047cf28 R13: 1ffffd40009a8ff8 R14: ffffea0004d47fc0 R15: 0000000000000000 FS: 00007f7ef60306c0(0000) GS:ffff88826e785000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff1 CR3: 0000000121a96000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_read_cache_folio+0x2a5/0x4c0 mm/filemap.c:3894 read_cache_folio+0x54/0x90 mm/filemap.c:3926 freader_get_folio+0x452/0x700 lib/buildid.c:77 freader_fetch+0xa4/0x590 lib/buildid.c:120 __build_id_parse+0x133/0x760 lib/buildid.c:305 build_id_parse+0x2e/0x40 lib/buildid.c:359 do_procmap_query fs/proc/task_mmu.c:534 [inline] procfs_procmap_ioctl+0x7fb/0xd70 fs/proc/task_mmu.c:613 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0x122/0x1a0 fs/ioctl.c:893 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893 x64_sys_call+0x19d3/0x2f80 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x62/0x160 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f7ef518e929 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:00007f7ef6030038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7ef53b6080 RCX: 00007f7ef518e929 RDX: 0000200000000180 RSI: 00000000c0686611 RDI: 0000000000000003 RBP: 00007f7ef5210b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7ef53b6080 R15: 00007ffebf993d58 Modules linked in: CR2: fffffffffffffff1 ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_read_folio+0xd9/0x2b0 mm/filemap.c:2412 Code: 44 24 40 00 00 00 00 48 81 e3 00 02 00 00 0f 85 85 01 00 00 e8 18 b5 c6 ff 48 8b 7c 24 18 4c 89 f6 4d 89 fb 41 ba 21 19 0d d3 <45> 03 53 f1 74 02 0f 0b 2e e8 ed eb 21 1e 41 89 c7 31 ff 44 89 fe RSP: 0018:ffffc900023e7920 EFLAGS: 00010293 RAX: ffffffff81de38e8 RBX: 0000000000000000 RCX: ffff888120815640 RDX: 0000000000000000 RSI: ffffea0004d47fc0 RDI: ffff88810f754f00 RBP: ffffc900023e79d8 R08: ffffea0004d47fc7 R09: 1ffffd40009a8ff8 R10: 00000000d30d1921 R11: 0000000000000000 R12: 1ffff9200047cf28 R13: 1ffffd40009a8ff8 R14: ffffea0004d47fc0 R15: 0000000000000000 FS: 00007f7ef60306c0(0000) GS:ffff88826e785000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff1 CR3: 0000000121a96000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 44 24 40 rex.R and $0x40,%al 3: 00 00 add %al,(%rax) 5: 00 00 add %al,(%rax) 7: 48 81 e3 00 02 00 00 and $0x200,%rbx e: 0f 85 85 01 00 00 jne 0x199 14: e8 18 b5 c6 ff call 0xffc6b531 19: 48 8b 7c 24 18 mov 0x18(%rsp),%rdi 1e: 4c 89 f6 mov %r14,%rsi 21: 4d 89 fb mov %r15,%r11 24: 41 ba 21 19 0d d3 mov $0xd30d1921,%r10d * 2a: 45 03 53 f1 add -0xf(%r11),%r10d <-- trapping instruction 2e: 74 02 je 0x32 30: 0f 0b ud2 32: 2e e8 ed eb 21 1e cs call 0x1e21ec25 38: 41 89 c7 mov %eax,%r15d 3b: 31 ff xor %edi,%edi 3d: 44 89 fe mov %r15d,%esi