syzbot


BUG: unable to handle kernel paging request in mmap_region

Status: upstream: reported on 2024/08/27 17:28
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com
First crash: 78d, last: 41d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region 1 (3) 2024/08/27 19:38

Sample crash report:
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle page fault for address: ffffea000169a5c0
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0011) - permissions violation
PGD 13fff7067 P4D 13fff7067 PUD 13fff6067 PMD 800000013d4001e3 
Oops: Oops: 0011 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 6910 Comm: syz.0.357 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:0xffffea000169a5c0
Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
FS:  00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 mmap_region+0x1891/0x2090 mm/mmap.c:3058
 do_mmap+0x8f9/0x1010 mm/mmap.c:1468
 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3200977299
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:00007f32016ce048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f3200b06058 RCX: 00007f3200977299
RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000
RBP: 00007f32009e48e6 R08: 0000000000000012 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3200b06058 R15: 00007ffebfee75d8
 </TASK>
Modules linked in:
CR2: ffffea000169a5c0
---[ end trace 0000000000000000 ]---
RIP: 0010:0xffffea000169a5c0
Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
FS:  00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0

Crashes (381):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/30 07:54 upstream 94ede2a3e913 5187fc86 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: unable to handle kernel paging request in mmap_region
2024/07/29 12:32 upstream dc1c8034e31b 5187fc86 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: unable to handle kernel paging request in mmap_region
2024/07/23 06:35 upstream 66ebbdfdeb09 708c10c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: unable to handle kernel paging request in mmap_region
2024/07/22 14:43 upstream 933069701c1b f063dfd9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: unable to handle kernel paging request in mmap_region
2024/08/28 08:22 linux-next 195a402a7579 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 08:07 linux-next 195a402a7579 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 07:40 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 06:35 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 06:33 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 05:30 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 03:42 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 02:58 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 01:35 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/28 00:14 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 23:01 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 22:27 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 21:22 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 20:30 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 20:09 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 19:50 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 19:32 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 19:21 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 19:01 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 18:48 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 18:36 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 18:29 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 18:17 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 18:10 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:50 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:49 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:49 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:49 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:49 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:48 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:48 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:48 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:47 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:47 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:46 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:46 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:44 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:44 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:42 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:42 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:41 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
2024/08/27 17:41 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in mmap_region
* Struck through repros no longer work on HEAD.