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VFS: Busy inodes after unmount (use-after-free)

Status: upstream: reported C repro on 2023/01/25 10:43
Subsystems: btrfs (incorrect?)
Reported-by: syzbot+0af00f6a2cba2058b5db@syzkaller.appspotmail.com
First crash: 60d, last: 1h36m
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 VFS: Busy inodes after unmount (use-after-free) C 1 24d 24d 0/2 upstream: reported C repro on 2023/02/25 22:19
linux-6.1 VFS: Busy inodes after unmount (use-after-free) 3 9h33m 4d06h 0/3 upstream: reported on 2023/03/18 09:53
android-5-15 VFS: Busy inodes after unmount (use-after-free) C error 1 24d 24d 0/2 upstream: reported C repro on 2023/02/26 00:11
android-5-10 VFS: Busy inodes after unmount (use-after-free) C done 1 24d 24d 0/2 upstream: reported C repro on 2023/02/25 23:03
linux-5.15 VFS: Busy inodes after unmount (use-after-free) C 2 2d17h 3d04h 0/3 upstream: reported C repro on 2023/03/19 11:46

Sample crash report:
VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...

Crashes (212):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-gce-arm64 2023/01/24 11:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci edb2f0dc90f2 9dfcf09c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/22 14:23 upstream a1effab7a3a3 8b4eb097 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-root 2023/03/22 11:53 upstream a1effab7a3a3 d846e076 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/21 23:08 upstream 2faac9a98f01 8b4eb097 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-selinux-root 2023/03/21 17:39 upstream 17214b70a159 03fb9538 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/21 10:36 upstream 17214b70a159 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/21 06:40 upstream 7d31677bb7b1 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/21 04:49 upstream 7d31677bb7b1 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/21 02:54 upstream 7d31677bb7b1 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/21 01:43 upstream 7d31677bb7b1 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-smack-root 2023/03/20 22:31 upstream 7d31677bb7b1 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-qemu-upstream 2023/03/19 20:11 upstream a3671bd86a97 7939252e .config console log report info VFS: Busy inodes after unmount (use-after-free)
ci-qemu-upstream 2023/03/19 18:55 upstream a3671bd86a97 7939252e .config console log report info VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-smack-root 2023/03/19 11:39 upstream a3671bd86a97 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-root 2023/03/19 08:25 upstream a3671bd86a97 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-qemu-upstream 2023/03/18 20:55 upstream 478a351ce0d6 7939252e .config console log report info VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/18 11:21 upstream 478a351ce0d6 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/18 09:27 upstream 478a351ce0d6 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/18 05:23 upstream 38e04b3e4240 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/18 02:25 upstream 38e04b3e4240 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/18 00:09 upstream 38e04b3e4240 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-qemu-upstream 2023/03/17 16:06 upstream 38e04b3e4240 18b58603 .config console log report info VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/17 04:08 upstream 0ddc84d2dd43 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-root 2023/03/17 03:07 upstream 0ddc84d2dd43 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/17 01:36 upstream 0ddc84d2dd43 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/16 15:24 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/16 13:39 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-smack-root 2023/03/16 09:47 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-selinux-root 2023/03/15 22:15 upstream 6015b1aca1a2 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/15 09:46 upstream 6015b1aca1a2 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/15 06:17 upstream 4979bf866825 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/13 04:35 upstream 134231664868 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/13 01:57 upstream 134231664868 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/06 06:10 upstream f915322fe014 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/06 03:10 upstream f915322fe014 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/05 12:43 upstream b01fe98d34f3 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/05 01:06 upstream 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/05 00:01 upstream 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-smack-root 2023/03/04 06:25 upstream 0a3f9a6b0265 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-root 2023/03/04 06:04 upstream 0a3f9a6b0265 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/03 20:47 upstream 2eb29d59ddf0 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/03 17:34 upstream 2eb29d59ddf0 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/03 11:07 upstream 2eb29d59ddf0 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-kasan-gce-root 2023/03/03 07:16 upstream 04a357b1f6f0 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci2-upstream-fs 2023/03/03 05:27 upstream 04a357b1f6f0 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-qemu-upstream-386 2023/03/20 08:18 upstream e8d018dd0257 7939252e .config console log report info VFS: Busy inodes after unmount (use-after-free)
ci-qemu-upstream-386 2023/03/18 15:22 upstream 478a351ce0d6 7939252e .config console log report info VFS: Busy inodes after unmount (use-after-free)
ci-upstream-linux-next-kasan-gce-root 2023/03/19 01:51 linux-next 6f08c1de13a9 7939252e .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-linux-next-kasan-gce-root 2023/03/17 14:36 linux-next 6f08c1de13a9 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-linux-next-kasan-gce-root 2023/03/16 17:54 linux-next 6f72958a49f6 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
ci-upstream-gce-arm64 2023/03/03 13:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 596b6b709632 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] VFS: Busy inodes after unmount (use-after-free)
* Struck through repros no longer work on HEAD.