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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: 405d, last: 1d02h
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 270 23h05m 405d 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 149d 576d 0/26 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 job log (1)

Sample crash report:
loop0: detected capacity change from 0 to 32768
================================================================================
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: 3545 Comm: syz-executor270 Not tainted 6.1.78-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
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+0x176/0x400 mm/filemap.c:3945
 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+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbe01a9d0a9
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:00007fbe01a5b218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fbe01b2a608 RCX: 00007fbe01a9d0a9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007fbe01b2a600 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 00007fbe01b2a60c
R13: 00007fbe01af6e30 R14: 00007fbe01af1060 R15: 0030656c69662f2e
 </TASK>
================================================================================

Crashes (170):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2024/03/04 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
2024/04/24 11:15 linux-6.1.y 6741e066ec76 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/24 05:10 linux-6.1.y 6741e066ec76 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/22 00:09 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/21 21:32 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/19 02:05 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/18 21:38 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/18 18:52 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/17 22:37 linux-6.1.y 6741e066ec76 acc528cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/16 07:44 linux-6.1.y cd5d98c0556c 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/11 22:46 linux-6.1.y bf1e3b1cb1e0 95ed9ece .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/08 18:07 linux-6.1.y 347385861c50 53df08b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/05 21:57 linux-6.1.y 347385861c50 77230c29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/12 03:02 linux-6.1.y 61adba85cc40 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/12 01:45 linux-6.1.y 61adba85cc40 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/07 20:45 linux-6.1.y 61adba85cc40 2b789849 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/07 07:38 linux-6.1.y 61adba85cc40 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/07 04:35 linux-6.1.y 61adba85cc40 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/07 04:24 linux-6.1.y 61adba85cc40 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/06 05:36 linux-6.1.y a3eb3a74aa8c f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/06 04:19 linux-6.1.y a3eb3a74aa8c f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/03 17:41 linux-6.1.y a3eb3a74aa8c 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/03 15:54 linux-6.1.y a3eb3a74aa8c 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/03/03 13:41 linux-6.1.y a3eb3a74aa8c 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/28 04:36 linux-6.1.y 81e1dc2f7001 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/27 00:19 linux-6.1.y 81e1dc2f7001 da36a36b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/26 05:30 linux-6.1.y 81e1dc2f7001 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/24 05:41 linux-6.1.y 81e1dc2f7001 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/24 01:44 linux-6.1.y 81e1dc2f7001 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/22 05:47 linux-6.1.y 8b4118fabd6e 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/22 04:29 linux-6.1.y 8b4118fabd6e 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/21 12:40 linux-6.1.y 8b4118fabd6e 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/21 02:59 linux-6.1.y 8b4118fabd6e 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/19 03:30 linux-6.1.y 8b4118fabd6e 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/18 12:45 linux-6.1.y 8b4118fabd6e 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/18 03:20 linux-6.1.y 8b4118fabd6e 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/13 22:20 linux-6.1.y f1bb70486c9c e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/10 09:21 linux-6.1.y f1bb70486c9c 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/10 07:10 linux-6.1.y f1bb70486c9c 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/10 06:49 linux-6.1.y f1bb70486c9c 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/09 13:34 linux-6.1.y f1bb70486c9c 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/07 03:47 linux-6.1.y f1bb70486c9c 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/02/01 09:18 linux-6.1.y e5c3b988b827 373b66cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/01/28 08:32 linux-6.1.y 883d1a956208 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/01/27 03:38 linux-6.1.y 883d1a956208 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/01/27 02:34 linux-6.1.y 883d1a956208 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in xtInsert
2024/04/18 12:39 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2024/03/19 18:15 linux-6.1.y d7543167affd e104824c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2024/02/22 02:30 linux-6.1.y 8b4118fabd6e 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2024/02/13 20:16 linux-6.1.y f1bb70486c9c e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 UBSAN: array-index-out-of-bounds in xtInsert
2024/01/22 14:46 linux-6.1.y 8fd7f4462453 9bd8dcda .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.