syzbot


UBSAN: shift-out-of-bounds in dbAlloc

Status: upstream: reported C repro on 2022/09/26 16:32
Reported-by: syzbot+a41ec88f6b014e3da07b@syzkaller.appspotmail.com
First crash: 66d, last: 11d

Cause bisection: failed (bisect log)

Sample crash report:
loop0: detected capacity change from 0 to 264192
================================================================================
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:776:12
shift exponent 1834973817 is too large for 64-bit type 'long long'
CPU: 0 PID: 3608 Comm: syz-executor347 Not tainted 6.0.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_shift_out_of_bounds+0x33d/0x3b0 lib/ubsan.c:322
 dbAlloc+0xbdc/0xc90 fs/jfs/jfs_dmap.c:776
 extBalloc fs/jfs/jfs_extent.c:321 [inline]
 extAlloc+0x4b9/0xff0 fs/jfs/jfs_extent.c:122
 jfs_get_block+0x342/0xce0 fs/jfs/inode.c:248
 __block_write_begin_int+0x5f6/0x1ba0 fs/buffer.c:2006
 __block_write_begin fs/buffer.c:2056 [inline]
 block_write_begin+0x93/0x1e0 fs/buffer.c:2117
 jfs_write_begin+0x2d/0x60 fs/jfs/inode.c:304
 generic_perform_write+0x2a8/0x5b0 mm/filemap.c:3738
 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3866
 generic_file_write_iter+0xab/0x310 mm/filemap.c:3898
 do_iter_write+0x6c2/0xc20 fs/read_write.c:855
 vfs_writev fs/read_write.c:928 [inline]
 do_writev+0x23e/0x430 fs/read_write.c:971
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f72b62b4f39
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007ffe31a1b658 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f72b62b4f39
RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f72b6274700 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000f8008000
R13: 0000000000000000 R14: 00080000000000f8 R15: 0000000000000000
 </TASK>
================================================================================

Crashes (110):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-fs 2022/09/26 12:47 upstream f76349cf4145 d59ba983 .config log report syz C UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/10/25 02:51 linux-next 4d48f589d294 ff2fe65d .config log report syz C UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/09/25 20:40 linux-next aaa11ce2ffc8 0042f2b4 .config log report syz C UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/19 14:48 upstream ab290eaddc4c 5bb70014 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/18 03:05 upstream 81ac25651a62 4ba8ab94 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/17 17:12 upstream cc675d22e422 4ba8ab94 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/16 06:34 upstream 81e7cfa3a9eb 3a127a31 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/15 11:12 upstream e01d50cbd6ee 97de9cfc .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/14 15:09 upstream 094226ad94f4 943f4cb8 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/12 04:37 upstream eb037f16f7e8 f42ee5d8 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/10 08:30 upstream f67dd6ce0723 b2488a87 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/10 06:04 upstream f67dd6ce0723 b2488a87 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/07 21:30 upstream f0c4d9fc9cc9 a779b11a .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/05 13:23 upstream 64c3dd0b98f5 6d752409 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/05 12:00 upstream 64c3dd0b98f5 6d752409 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/03 17:37 upstream b229b6ca5abb 7a2ebf95 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/03 15:40 upstream b229b6ca5abb 7a2ebf95 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/03 09:34 upstream b229b6ca5abb 7a2ebf95 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/02 15:33 upstream b229b6ca5abb 08977f5d .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/11/02 03:05 upstream b229b6ca5abb 08977f5d .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/31 18:50 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/31 11:48 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/31 07:02 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/31 03:30 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/31 01:59 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/31 00:44 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/30 21:09 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/30 12:26 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/30 09:43 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/30 04:44 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/30 02:38 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/29 21:42 upstream b229b6ca5abb 2a71366b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-root 2022/10/29 20:03 upstream b229b6ca5abb 899d812a .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-root 2022/10/29 02:51 upstream b229b6ca5abb ea12ae9b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-smack-root 2022/10/28 23:37 upstream b229b6ca5abb ea12ae9b .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/28 18:05 upstream b229b6ca5abb 8168b69e .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-smack-root 2022/10/28 08:25 upstream b229b6ca5abb 86777b7f .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/28 05:47 upstream b229b6ca5abb 5c716ff6 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-root 2022/10/27 15:40 upstream 98555239e4c3 86777b7f .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/27 01:39 upstream 4dc12f37a8e9 86777b7f .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/26 12:41 upstream 1a2dcbdde82e 2159e4d2 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/26 02:36 upstream 1a2dcbdde82e 2159e4d2 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/25 17:29 upstream 337a0a0b63f1 45645420 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/25 05:22 upstream 337a0a0b63f1 45645420 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/24 16:15 upstream 247f34f7b803 faae2fda .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/23 14:39 upstream d47136c28015 23bf86af .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/23 08:15 upstream 4da34b7d175d c0b80a55 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/23 06:10 upstream 4da34b7d175d c0b80a55 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/20 22:58 upstream 493ffd6605b2 a0fd4dab .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-qemu-upstream 2022/10/19 20:41 upstream aae703b02f92 b31320fc .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/19 06:18 upstream 493ffd6605b2 b31320fc .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci2-upstream-fs 2022/10/19 03:58 upstream 493ffd6605b2 b31320fc .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-root 2022/10/18 12:57 upstream 55be6084c8e0 754863b4 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-kasan-gce-selinux-root 2022/10/17 08:13 upstream 55be6084c8e0 67cb024c .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-qemu-upstream-386 2022/10/09 19:51 upstream a6afa4199d3d aea5da89 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/11/01 12:33 linux-next 4d48f589d294 a1d8560a .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/11/01 09:49 linux-next 4d48f589d294 a1d8560a .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/10/28 04:33 linux-next 4d48f589d294 86777b7f .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/10/21 04:07 linux-next acee3e83b493 a0fd4dab .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/10/20 11:31 linux-next acee3e83b493 b31320fc .config log report info UBSAN: shift-out-of-bounds in dbAlloc
ci-upstream-linux-next-kasan-gce-root 2022/09/25 20:04 linux-next aaa11ce2ffc8 0042f2b4 .config log report info UBSAN: shift-out-of-bounds in dbAlloc
* Struck through repros no longer work on HEAD.