syzbot


BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio (4)

Status: upstream: reported C repro on 2024/11/16 23:40
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+09b7d050e4806540153d@syzkaller.appspotmail.com
First crash: 180d, last: 3h24m
Cause bisection: introduced by (bisect log) :
commit ad41251c290dfe3c01472c94d2439a59de23fe97
Author: Andrii Nakryiko <andrii@kernel.org>
Date: Thu Aug 29 17:42:28 2024 +0000

  lib/buildid: implement sleepable build_id_parse() API

Crash: BUG: unable to handle kernel paging request in workingset_refault (log)
Repro: C syz .config
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [fs?] BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio (4) 1 (4) 2025/04/06 23:09
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio (3) erofs C 492 180d 236d 28/28 fixed on 2024/11/12 23:31
upstream BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio fs mm 8 925d 934d 0/28 auto-obsoleted due to no activity on 2023/02/26 19:26
upstream BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio (2) fs 6 699d 748d 0/28 auto-obsoleted due to no activity on 2023/09/20 22:50
Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/11/17 00:18 17m hdanton@sina.com patch upstream OK log

Sample crash report:
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 0 P4D 0 
Oops: Oops: 0010 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6539 Comm: syz-executor306 Not tainted 6.15.0-rc5-syzkaller-00207-g1a33418a69cc #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90004a7f9c8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81f1092e
RDX: ffff88806aa00000 RSI: ffffea0001e1b1c0 RDI: ffff888031e936c0
RBP: ffffea0001e1b1c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff9200094ff3a
R13: ffff888031e936c0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f7731a8a6c0(0000) GS:ffff8881249ec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000012968000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_read_folio+0xc5/0x2a0 mm/filemap.c:2401
 do_read_cache_folio+0x263/0x5c0 mm/filemap.c:3885
 freader_get_folio+0x337/0x8e0 lib/buildid.c:77
 freader_fetch+0xc2/0x5e0 lib/buildid.c:120
 __build_id_parse.isra.0+0xec/0x7a0 lib/buildid.c:305
 do_procmap_query+0xd96/0x1090 fs/proc/task_mmu.c:534
 procfs_procmap_ioctl+0x7d/0xb0 fs/proc/task_mmu.c:613
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7731af3909
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7731a8a218 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7731b7e3d8 RCX: 00007f7731af3909
RDX: 0000200000000080 RSI: 00000000c0686611 RDI: 0000000000000003
RBP: 00007f7731b7e3d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7731b4b400
R13: 0000080000000007 R14: 00002000000000a0 R15: 0000200000000080
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90004a7f9c8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81f1092e
RDX: ffff88806aa00000 RSI: ffffea0001e1b1c0 RDI: ffff888031e936c0
RBP: ffffea0001e1b1c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff9200094ff3a
R13: ffff888031e936c0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f7731a8a6c0(0000) GS:ffff8881249ec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000012968000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2254):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/10 19:37 upstream 1a33418a69cc 77908e5f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/04/25 06:28 upstream e72e9e693307 e3715315 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/04/25 05:40 upstream e72e9e693307 e3715315 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/04/25 04:53 upstream e72e9e693307 e3715315 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/04/25 04:05 upstream e72e9e693307 e3715315 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/04/04 11:13 upstream a2cc6ff5ec8f d7ae3a11 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/01/02 11:29 upstream 56e6a3499e14 d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/26 20:28 upstream 9b2ffa6148b1 d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/26 06:49 upstream 9b2ffa6148b1 444551c4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/24 12:38 upstream f07044dd0df0 444551c4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/23 04:24 upstream bcde95ce32b6 b4fbdbd4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/20 19:09 upstream 8faabc041a00 49cfeac8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/20 18:12 upstream 8faabc041a00 49cfeac8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/18 12:32 upstream aef25be35d23 a0626d3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/18 12:09 upstream aef25be35d23 a0626d3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/18 11:44 upstream aef25be35d23 a0626d3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/12/18 11:17 upstream aef25be35d23 a0626d3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/03/26 19:25 upstream 1e26c5e28ca5 19e40f48 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/02/13 14:29 upstream 4dc1d1bec898 7320a65f .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2024/11/13 00:01 upstream 3022e9d00ebe c819f227 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/01/03 18:03 upstream 0bc21e701a6f 96d578a3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/12 00:29 upstream cd802e7e5f1e 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/11 19:02 upstream 3ce9925823c7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/10 21:55 upstream 1a33418a69cc 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/10 19:03 upstream 1a33418a69cc 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/10 16:46 upstream 1a33418a69cc 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/09 19:01 upstream 9c69f8884904 43803998 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/09 16:25 upstream 9c69f8884904 43803998 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/08 12:44 upstream d76bb1ebb558 dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/08 00:25 upstream 707df3375124 dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 18:35 upstream 707df3375124 dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 13:52 upstream 0d8d44db295c 350f4ffc .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 06:26 upstream 0d8d44db295c 350f4ffc .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 04:37 upstream 0d8d44db295c 350f4ffc .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 04:33 upstream 0d8d44db295c 350f4ffc .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 15:50 upstream 01f95500a162 ae98e6b9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 11:40 upstream 01f95500a162 ae98e6b9 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/05 14:18 upstream 92a09c47464d 6ca47dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/05 12:06 upstream 92a09c47464d 6ca47dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/05 06:17 upstream 92a09c47464d b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/04 17:40 upstream e8ab83e34bdc b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/04 04:02 upstream 2a239ffbebb5 b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/03 22:52 upstream 95d3481af6dc b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/02/25 14:59 upstream d082ecbc71e9 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/02/20 19:30 upstream 87a132e73910 50668798 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/03/09 05:02 upstream b7c90e3e717a 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/09 17:53 upstream 9c69f8884904 3af71fd3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/09 06:47 upstream 2c89c1b655c0 bb813bcc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/09 05:20 upstream 2c89c1b655c0 bb813bcc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/09 00:12 upstream 2c89c1b655c0 bb813bcc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/08 11:20 upstream d76bb1ebb558 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/08 08:52 upstream d76bb1ebb558 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/08 03:47 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/08 02:26 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 23:08 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 21:01 upstream 707df3375124 dbf35fa1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/07 08:14 upstream 0d8d44db295c 350f4ffc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 19:19 upstream 0d8d44db295c 350f4ffc .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 10:00 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 06:48 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 05:01 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/06 03:59 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/05 23:47 upstream 01f95500a162 ae98e6b9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/05 18:20 upstream 92a09c47464d 6ca47dd8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/05 07:42 upstream 92a09c47464d b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/04 22:07 upstream e8ab83e34bdc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/04 06:41 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/04 05:20 upstream 2a239ffbebb5 b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/03 21:13 upstream 95d3481af6dc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/05/03 19:50 upstream 95d3481af6dc b0714e37 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/04/28 07:25 upstream b4432656b36e c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/03/14 19:42 upstream e3a854b577cb e2826670 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
2025/02/11 11:07 linux-next df5d6180169a 43f51a00 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
* Struck through repros no longer work on HEAD.