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UBSAN: array-index-out-of-bounds in xtInsert

Status: upstream: reported C repro on 2023/03/16 13:35
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+6b1d79dad6cc6b3eef41@syzkaller.appspotmail.com
First crash: 498d, last: 3d00h
Fix commit to backport (bisect log) :
tree: upstream
commit a779ed754e52d582b8c0e17959df063108bd0656
Author: Dave Kleikamp <dave.kleikamp@oracle.com>
Date: Thu Oct 5 14:16:14 2023 +0000

  jfs: define xtree root and page independently

  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2023/11/18 linux-6.1.y (ToT) fb2635ac69ab C [report] UBSAN: array-index-out-of-bounds in xtInsert
2023/11/18 upstream (ToT) 791c8ab095f7 C Didn't crash
▶ ▼ Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 UBSAN: array-index-out-of-bounds in xtInsert origin:lts-only C error 524 3d03h 498d 0/3 upstream: reported C repro on 2023/03/16 13:52
upstream UBSAN: array-index-out-of-bounds in xtInsert jfs C error done 1187 242d 669d 0/27 auto-obsoleted due to no activity on 2024/02/19 22:20
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/11/28 01:35 4h47m fix candidate upstream OK (1) job log

Sample crash report:
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:622:9
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 1 PID: 3542 Comm: syz-executor162 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0x118/0x140 lib/ubsan.c:282
 xtInsert+0xf41/0xfa0 fs/jfs/jfs_xtree.c:622
 extAlloc+0xa70/0x1000 fs/jfs/jfs_extent.c:145
 jfs_get_block+0x417/0xe50 fs/jfs/inode.c:248
 __block_write_begin_int+0x544/0x1a30 fs/buffer.c:1991
 __block_write_begin fs/buffer.c:2041 [inline]
 block_write_begin+0x98/0x1f0 fs/buffer.c:2102
 jfs_write_begin+0x2d/0x60 fs/jfs/inode.c:304
 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3817
 __generic_file_write_iter+0x297/0x400 mm/filemap.c:3913
 generic_file_write_iter+0xab/0x310 mm/filemap.c:3977
 do_iter_write+0x6e6/0xc50 fs/read_write.c:861
 iter_file_splice_write+0x830/0xfc0 fs/splice.c:685
 do_splice_from fs/splice.c:763 [inline]
 direct_splice_actor+0xe3/0x1c0 fs/splice.c:950
 splice_direct_to_actor+0x4c7/0xc30 fs/splice.c:896
 do_splice_direct+0x2a5/0x3e0 fs/splice.c:1002
 do_sendfile+0x61c/0xff0 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fea7503ea29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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:00007fea74ff9218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fea750d7728 RCX: 00007fea7503ea29
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000008
RBP: 00007fea750d7720 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201004 R11: 0000000000000246 R12: 00007fea750a44e4
R13: 00007fea7509304f R14: 00007fea75093057 R15: 0031656c69662f2e
 </TASK>
================================================================================

Crashes (385):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/09 23:43 linux-6.1.y 909ba1f1b414 05079661 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/22 14:19 linux-6.1.y 8b4118fabd6e 345111b5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/19 04:49 linux-6.1.y 8b4118fabd6e 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2023/11/18 08:52 linux-6.1.y fb2635ac69ab cb976f63 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/27 22:05 linux-6.1.y f2295faba5e8 07b455f9 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2024/03/04 10:02 linux-6.1.y a3eb3a74aa8c 25905f5d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2023/10/13 11:55 linux-6.1.y 082280fe94a0 6388bc36 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2023/06/04 04:09 linux-6.1.y d2869ace6eeb a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2023/10/23 00:08 linux-6.1.y 7d24402875c7 361b23dc .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2023/05/26 15:24 linux-6.1.y a343b0dd87b4 b40ef614 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2023/06/27 19:59 linux-6.1.y e84a4e368abe 4cd5bb25 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/24 02:10 linux-6.1.y 9b3f9a5b12dc e50e8da5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/16 09:37 linux-6.1.y cac15753b8ce e8709b21 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/07 00:10 linux-6.1.y 7753af06eebf 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/07 00:09 linux-6.1.y 7753af06eebf 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/06 05:45 linux-6.1.y 7753af06eebf 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/06 03:10 linux-6.1.y 7753af06eebf 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/06 01:25 linux-6.1.y 7753af06eebf 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/05 21:53 linux-6.1.y 7753af06eebf 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/04 20:09 linux-6.1.y 99e6a620de00 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/04 04:19 linux-6.1.y 99e6a620de00 f76a75f3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/03 15:01 linux-6.1.y 99e6a620de00 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/03 14:59 linux-6.1.y 99e6a620de00 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/23 11:51 linux-6.1.y eb44d83053d6 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/21 17:04 linux-6.1.y eb44d83053d6 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/21 08:41 linux-6.1.y eb44d83053d6 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/21 06:39 linux-6.1.y eb44d83053d6 dac2aa43 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/13 22:10 linux-6.1.y ae9f2a70d69e a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/13 20:46 linux-6.1.y ae9f2a70d69e a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/12 20:18 linux-6.1.y ae9f2a70d69e f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/12 20:07 linux-6.1.y ae9f2a70d69e f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/11 12:56 linux-6.1.y 88690811da69 b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/11 04:10 linux-6.1.y 88690811da69 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/10 15:12 linux-6.1.y 88690811da69 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/10 10:36 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/10 08:55 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/09 16:20 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/09 12:50 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/09 09:13 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/09 09:13 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/08 22:22 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/08 17:34 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/08 16:05 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/08 12:02 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/08 08:10 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/08 08:10 linux-6.1.y 88690811da69 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/06 20:11 linux-6.1.y 88690811da69 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/06 13:07 linux-6.1.y 88690811da69 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/06 08:22 linux-6.1.y 88690811da69 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/01 15:22 linux-6.1.y 88690811da69 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/06/01 13:18 linux-6.1.y 88690811da69 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/05/31 09:01 linux-6.1.y 88690811da69 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/05/31 08:26 linux-6.1.y 88690811da69 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/05/28 09:48 linux-6.1.y 88690811da69 f550015e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/05/27 06:10 linux-6.1.y 88690811da69 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/07/14 12:44 linux-6.1.y 266ee8e06d5b eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2024/06/07 06:31 linux-6.1.y 88690811da69 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2023/03/16 13:35 linux-6.1.y 6449a0ba6843 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
* Struck through repros no longer work on HEAD.