syzbot


BUG: unable to handle kernel NULL pointer dereference in set_page_dirty

Status: upstream: reported C repro on 2023/03/18 12:05
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+c36d2e543e7ff63db7f1@syzkaller.appspotmail.com
First crash: 429d, last: 9d14h
Bug presence (2)
Date Name Commit Repro Result
2023/05/08 linux-6.1.y (ToT) ca48fc16c493 C [report] BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/05/08 upstream (ToT) ac9a78681b92 C Didn't crash
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel NULL pointer dereference in set_page_dirty f2fs reiserfs C 310 502d 634d 1/26 upstream: reported C repro on 2022/08/25 15:29
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/10/05 17:16 2h13m fix candidate upstream job log (0)

Sample crash report:
loop0: detected capacity change from 0 to 4096
ntfs3: loop0: Different NTFS' sector size (2048) and media sector size (512)
ntfs3: loop0: Mark volume as dirty due to NTFS errors
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
  ESR = 0x0000000086000006
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010e10f000
[0000000000000000] pgd=0800000104bed003, p4d=0800000104bed003, pud=080000010f6bd003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4221 Comm: syz-executor437 Not tainted 6.1.79-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : folio_mark_dirty+0x118/0x198 mm/page-writeback.c:2749
sp : ffff80001dc07640
x29: ffff80001dc07640 x28: 0000000000000000 x27: 0000000000000800
x26: 0000000000000000 x25: fffffc0003897f48 x24: 05ffd00000000057
x23: 1fffff8000712fe9 x22: dfff800000000000 x21: ffff8000125b3558
x20: ffff0000df3df318 x19: fffffc0003897f40 x18: ffff80001dc07160
x17: 0004060000000014 x16: ffff8000120a8840 x15: 0000000000000000
x14: 0000000000000406 x13: ffff0000d7640000 x12: 0000000000000000
x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008774fcc
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000004
x2 : 0000000000000000 x1 : fffffc0003897f40 x0 : ffff0000df3df318
Call trace:
 0x0
 set_page_dirty+0x58/0x78 mm/folio-compat.c:62
 ntfs_sparse_cluster+0x6fc/0xa58 fs/ntfs3/file.c:335
 ntfs_fallocate+0x8b0/0xd88 fs/ntfs3/file.c:727
 vfs_fallocate+0x478/0x5b4 fs/open.c:323
 ioctl_preallocate+0x278/0x324 fs/ioctl.c:290
 do_vfs_ioctl+0x1ad8/0x26f8 fs/ioctl.c:849
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: bad PC value
---[ end trace 0000000000000000 ]---

Crashes (124):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/28 03:38 linux-6.1.y 81e1dc2f7001 d367cbe5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/12/02 21:16 linux-6.1.y 6ac30d748bb0 f819d6f7 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/05/06 09:40 linux-6.1.y ca48fc16c493 de870ca5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/08/17 09:10 linux-6.1.y 6c44e13dc284 74b106b6 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/05/11 13:22 linux-6.1.y 909ba1f1b414 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/05/05 17:39 linux-6.1.y 909ba1f1b414 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/05/04 20:24 linux-6.1.y 909ba1f1b414 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/05/02 11:04 linux-6.1.y dcbc050cb0d3 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/30 08:11 linux-6.1.y dcbc050cb0d3 f10afd69 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/29 01:38 linux-6.1.y f2295faba5e8 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/27 21:05 linux-6.1.y f2295faba5e8 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/26 10:41 linux-6.1.y 6741e066ec76 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/22 08:55 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/21 12:03 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/21 06:45 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/20 08:49 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/20 07:08 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/16 15:21 linux-6.1.y cd5d98c0556c 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/15 21:08 linux-6.1.y cd5d98c0556c b9af7e61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/15 10:37 linux-6.1.y cd5d98c0556c c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/15 05:10 linux-6.1.y cd5d98c0556c c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/13 06:35 linux-6.1.y bf1e3b1cb1e0 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/12 10:52 linux-6.1.y bf1e3b1cb1e0 27de0a5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/12 05:38 linux-6.1.y bf1e3b1cb1e0 27de0a5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/12 01:05 linux-6.1.y bf1e3b1cb1e0 95ed9ece .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/11 12:14 linux-6.1.y bf1e3b1cb1e0 33b9e058 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/11 07:40 linux-6.1.y bf1e3b1cb1e0 33b9e058 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/10 02:53 linux-6.1.y 347385861c50 171ec371 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/09 22:22 linux-6.1.y 347385861c50 171ec371 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/09 17:15 linux-6.1.y 347385861c50 f3234354 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/09 12:35 linux-6.1.y 347385861c50 f3234354 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/08 15:38 linux-6.1.y 347385861c50 53df08b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/07 21:38 linux-6.1.y 347385861c50 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/06 12:07 linux-6.1.y 347385861c50 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/06 04:48 linux-6.1.y 347385861c50 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/05 21:10 linux-6.1.y 347385861c50 77230c29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/04/01 14:06 linux-6.1.y e5cd595e23c1 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/03/30 13:04 linux-6.1.y e5cd595e23c1 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/03/23 11:04 linux-6.1.y d7543167affd 0ea90952 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/03/13 11:12 linux-6.1.y 61adba85cc40 db5b7ff0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/01/26 22:40 linux-6.1.y 883d1a956208 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2024/01/24 18:51 linux-6.1.y 8fd7f4462453 1e153dc8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/10/21 18:35 linux-6.1.y 7d24402875c7 361b23dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/10/13 12:29 linux-6.1.y 082280fe94a0 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/10/13 05:39 linux-6.1.y 082280fe94a0 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/10/05 07:49 linux-6.1.y d23900f974e0 b7d7ff54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/09/30 06:22 linux-6.1.y d23900f974e0 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/09/30 04:28 linux-6.1.y d23900f974e0 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/09/26 13:14 linux-6.1.y d23900f974e0 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
2023/03/18 12:04 linux-6.1.y 7eaef76fbc46 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 BUG: unable to handle kernel NULL pointer dereference in set_page_dirty
* Struck through repros no longer work on HEAD.