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KMSAN: uninit-value in hfs_free_fork

Status: upstream: reported C repro on 2024/05/06 07:01
Subsystems: hfs
[Documentation on labels]
Reported-by: syzbot+2e6fb1f89ce5e13cd02d@syzkaller.appspotmail.com
First crash: 370d, last: 7h21m
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[PATCH] hfs: use kzalloc in hfs_find_init() to fix KMSAN bug 2 (2) 2024/11/12 16:08
[syzbot] [hfs?] KMSAN: uninit-value in hfs_free_fork 0 (5) 2024/11/11 19:53
Re: [syzbot] [hfs?] KMSAN: uninit-value in hfs_free_fork 1 (2) 2024/10/22 22:40
▶ ▼ Last patch testing requests (14)
Created Duration User Patch Repo Result
2025/05/01 17:07 23m retest repro upstream report log
2025/04/11 02:44 22m retest repro upstream report log
2025/04/11 02:44 25m retest repro upstream report log
2025/04/11 02:44 30m retest repro upstream report log
2025/01/31 08:20 28m retest repro upstream report log
2025/01/09 17:30 22m retest repro upstream report log
2024/12/15 11:18 1h01m retest repro upstream report log
2024/12/15 11:18 43m retest repro upstream report log
2024/11/11 19:53 27m gianf.trad@gmail.com patch upstream OK log
2024/11/11 19:50 0m gianf.trad@gmail.com patch upstream error
2024/11/11 19:49 30m gianf.trad@gmail.com upstream report log
2024/10/22 22:12 27m gianf.trad@gmail.com patch upstream OK log
2024/10/22 21:25 40m gianf.trad@gmail.com upstream report log
2024/06/29 15:54 21m retest repro upstream error

Sample crash report:
loop0: detected capacity change from 0 to 64
=====================================================
BUG: KMSAN: uninit-value in __hfs_ext_read_extent fs/hfs/extent.c:160 [inline]
BUG: KMSAN: uninit-value in hfs_free_fork+0x6b4/0xa50 fs/hfs/extent.c:320
 __hfs_ext_read_extent fs/hfs/extent.c:160 [inline]
 hfs_free_fork+0x6b4/0xa50 fs/hfs/extent.c:320
 hfs_cat_delete+0x501/0xb90 fs/hfs/catalog.c:247
 hfs_remove+0x16a/0x2f0 fs/hfs/dir.c:262
 vfs_unlink+0x676/0xa90 fs/namei.c:4523
 do_unlinkat+0x823/0xe20 fs/namei.c:4587
 __do_sys_unlink fs/namei.c:4635 [inline]
 __se_sys_unlink fs/namei.c:4633 [inline]
 __x64_sys_unlink+0x76/0xa0 fs/namei.c:4633
 x64_sys_call+0x2957/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:88
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4125 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_noprof+0x923/0x1230 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfs_find_init+0x91/0x250 fs/hfs/bfind.c:21
 hfs_free_fork+0x3bb/0xa50 fs/hfs/extent.c:316
 hfs_cat_delete+0x501/0xb90 fs/hfs/catalog.c:247
 hfs_remove+0x16a/0x2f0 fs/hfs/dir.c:262
 vfs_unlink+0x676/0xa90 fs/namei.c:4523
 do_unlinkat+0x823/0xe20 fs/namei.c:4587
 __do_sys_unlink fs/namei.c:4635 [inline]
 __se_sys_unlink fs/namei.c:4633 [inline]
 __x64_sys_unlink+0x76/0xa0 fs/namei.c:4633
 x64_sys_call+0x2957/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:88
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 5776 Comm: syz-executor238 Not tainted 6.13.0-rc3-syzkaller-00062-gc061cf420ded #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
=====================================================

Crashes (184):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/19 11:14 upstream c061cf420ded 1432fc84 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/08/26 11:15 upstream 5be63fc19fca d7d32352 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/08/26 09:31 upstream 5be63fc19fca d7d32352 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/05/06 06:49 upstream b9158815de52 610f2a54 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/05/03 10:21 upstream 02ddfb981de8 b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/05/03 10:21 upstream 02ddfb981de8 b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/05/02 07:27 upstream 02ddfb981de8 51b137cd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/05/01 18:19 upstream 02ddfb981de8 51b137cd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/04/17 13:59 upstream cfb2e2c57aef 2a6ededb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/03/28 00:38 upstream 1a9239bb4253 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/03/25 19:00 upstream 327ecdbc0fda 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/03/23 14:01 upstream 586de92313fc 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/03/23 02:42 upstream 183601b78a9b c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/03/23 02:42 upstream 183601b78a9b c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/02/17 18:28 upstream 0ad2507d5d93 9be4ace3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/02/16 07:25 upstream 496659003dac 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/02/15 21:41 upstream 7ff71e6d9239 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/02/15 14:26 upstream 7ff71e6d9239 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/02/05 12:44 upstream 5c8c229261f1 5896748e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/02/04 23:49 upstream d009de7d5428 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/01/17 04:43 upstream ce69b4019001 f9e07a6e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/01/17 03:07 upstream ce69b4019001 f9e07a6e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/01/16 09:38 upstream 619f0b6fad52 968edaf4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/26 10:45 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/26 07:50 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/26 06:23 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/26 02:04 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/25 01:54 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/19 09:36 upstream c061cf420ded 1432fc84 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/12/01 05:44 upstream 0e287d31b62b 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/11/18 08:48 upstream f66d6acccbc0 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/11/18 02:20 upstream f66d6acccbc0 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/11/15 07:37 upstream cfaaa7d010d1 f6ede3a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2024/05/06 06:02 upstream b9158815de52 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_free_fork
2025/05/11 20:37 upstream 02ddfb981de8 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/05/10 10:31 upstream 02ddfb981de8 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/04/15 02:21 upstream 834a4a689699 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/03/23 18:03 upstream 586de92313fc 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/03/23 06:18 upstream 183601b78a9b c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/03/10 17:35 upstream 80e54e84911a 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/02/26 16:21 upstream ac9c34d1e45a d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/02/17 21:21 upstream 0ad2507d5d93 9be4ace3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/02/16 12:15 upstream 496659003dac 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/02/15 19:10 upstream 7ff71e6d9239 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2025/02/05 05:51 upstream d009de7d5428 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2024/12/25 05:56 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2024/12/01 10:34 upstream c4bb3a2d641c 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2024/11/18 06:52 upstream f66d6acccbc0 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2024/11/15 11:51 upstream cfaaa7d010d1 f6ede3a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
2024/11/11 06:48 upstream a9cda7c0ffed 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_free_fork
* Struck through repros no longer work on HEAD.