syzbot


KASAN: null-ptr-deref Read in txBegin

Status: fixed on 2023/10/12 12:48
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+f1faa20eec55e0c8644c@syzkaller.appspotmail.com
Fix commit: 47cfdc338d67 FS: JFS: Fix null-ptr-deref Read in txBegin
First crash: 461d, last: 322d
Cause bisection: failed (error log, bisect log)
  
Discussions (6)
Title Replies (including bot) Last reply
[PATCH AUTOSEL 5.15 22/23] FS: JFS: Fix null-ptr-deref Read in txBegin 1 (1) 2023/07/24 01:23
[PATCH AUTOSEL 6.1 40/41] FS: JFS: Fix null-ptr-deref Read in txBegin 1 (1) 2023/07/24 01:21
[PATCH AUTOSEL 6.4 57/58] FS: JFS: Fix null-ptr-deref Read in txBegin 1 (1) 2023/07/24 01:13
[PATCH] FS: JFS: Fix null-ptr-deref Read in txBegin 3 (3) 2023/06/23 13:51
Re: [PATCH] FS: JFS: Fix null-ptr-deref Read in txBegin 1 (1) 2023/06/23 13:48
[syzbot] [jfs?] KASAN: null-ptr-deref Read in txBegin 0 (2) 2023/05/13 15:33
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 BUG: unable to handle kernel paging request in txBegin origin:upstream C 4 2d03h 426d 0/3 upstream: reported C repro on 2023/03/21 08:56
linux-5.15 BUG: unable to handle kernel paging request in txBegin origin:upstream missing-backport C error 3 312d 426d 0/3 upstream: reported C repro on 2023/03/21 10:23
linux-4.14 general protection fault in txBegin jfs 1 507d 507d 0/1 upstream: reported on 2022/12/30 21:46
Last patch testing requests (3)
Created Duration User Patch Repo Result
2023/03/22 10:40 28m mirimmad17@gmail.com patch upstream OK log
2023/03/21 17:14 20m mirimmad17@gmail.com patch upstream report log
2023/03/21 16:28 22m mirimmad17@gmail.com patch upstream report log

Sample crash report:
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: null-ptr-deref in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: null-ptr-deref in txBegin+0x186/0xa10 fs/jfs/jfs_txnmgr.c:366
Read of size 8 at addr 0000000000000040 by task syz-executor287/4999

CPU: 0 PID: 4999 Comm: syz-executor287 Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_report mm/kasan/report.c:465 [inline]
 kasan_report+0xec/0x130 mm/kasan/report.c:572
 check_region_inline mm/kasan/generic.c:181 [inline]
 kasan_check_range+0x141/0x190 mm/kasan/generic.c:187
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 txBegin+0x186/0xa10 fs/jfs/jfs_txnmgr.c:366
 __jfs_xattr_set+0xa1/0x150 fs/jfs/xattr.c:915
 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:201
 __vfs_setxattr_noperm+0x129/0x5f0 fs/xattr.c:235
 __vfs_setxattr_locked+0x1d3/0x260 fs/xattr.c:296
 vfs_setxattr+0x143/0x340 fs/xattr.c:322
 do_setxattr+0x147/0x190 fs/xattr.c:630
 setxattr+0x146/0x160 fs/xattr.c:653
 path_setxattr+0x197/0x1c0 fs/xattr.c:672
 __do_sys_setxattr fs/xattr.c:688 [inline]
 __se_sys_setxattr fs/xattr.c:684 [inline]
 __x64_sys_setxattr+0xc4/0x160 fs/xattr.c:684
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1461d9ebd9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd40cf8b38 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f1461d9ebd9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000020000180
RBP: 00007f1461d5e210 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1461d5e2a0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
==================================================================

Crashes (30):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/22 06:01 upstream dad9774deaf1 09ffe269 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root KASAN: null-ptr-deref Read in txBegin
2023/06/06 22:59 upstream a4d7d7011219 a4ae4f42 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root KASAN: null-ptr-deref Read in txBegin
2023/05/13 15:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/03/21 05:22 upstream 7d31677bb7b1 7939252e .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs KASAN: null-ptr-deref Read in txBegin
2023/02/14 21:21 upstream 82eac0c830b7 e62ba3c1 .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs KASAN: null-ptr-deref Read in txBegin
2023/03/21 01:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/02/15 00:19 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2d3827b3f393 1d6b4af7 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in txBegin
2023/06/07 14:39 upstream a4d7d7011219 6b9fb3c4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: null-ptr-deref Read in txBegin
2023/04/30 10:56 upstream 825a0714d2b3 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs KASAN: null-ptr-deref Read in txBegin
2023/03/04 08:30 upstream 0a3f9a6b0265 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs KASAN: null-ptr-deref Read in txBegin
2023/02/14 19:56 upstream 82eac0c830b7 e62ba3c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs KASAN: null-ptr-deref Read in txBegin
2023/03/04 07:02 linux-next 1acf39ef8f14 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root KASAN: null-ptr-deref Read in txBegin
2023/07/03 07:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/06/24 09:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/06/11 19:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/06/07 23:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7579d8f9bf90 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/06/04 04:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/05/19 11:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f1fcbaa18b28 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/05/13 15:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/27 13:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 6f5b1cc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/24 05:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/20 00:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 327bf9bb94cf a219f34e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/16 16:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1f5b16c51aef ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/10 18:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9a03cbd79d3a 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/09 19:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9a03cbd79d3a 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/06 05:00 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59caa87f9dfb 8b834965 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/04 13:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59caa87f9dfb 928dd177 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/04/04 07:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59caa87f9dfb 7db618d0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/03/21 00:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
2023/02/26 22:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2ebd1fbb946d ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in txBegin
* Struck through repros no longer work on HEAD.