Miklos Szeredi f2fb18d429 fuse: lock inode unconditionally in fuse_fallocate() ...

commit 44361e8cf9 upstream.

file_modified() must be called with inode lock held.  fuse_fallocate()
didn't lock the inode in case of just FALLOC_KEEP_SIZE flags value, which
resulted in a kernel Warning in notify_change().

Lock the inode unconditionally, like all other fallocate implementations
do.

Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Reported-and-tested-by: syzbot+462da39f0667b357c4b6@syzkaller.appspotmail.com
Fixes: 4a6f278d48 ("fuse: add file_modified() to fallocate")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-12-02 17:41:11 +01:00

..

acl.c

…

control.c

fuse: Remove the control interface for virtio-fs

2022-08-17 14:24:11 +02:00

cuse.c

…

dax.c

…

dev.c

fuse: fix pipe buffer lifetime for direct_io

2022-03-16 14:23:42 +01:00

dir.c

…

file.c

fuse: lock inode unconditionally in fuse_fallocate()

2022-12-02 17:41:11 +01:00

fuse_i.h

fuse: fix pipe buffer lifetime for direct_io

2022-03-16 14:23:42 +01:00

inode.c

fuse: limit nsec

2022-08-17 14:22:56 +02:00

ioctl.c

fuse: ioctl: translate ENOSYS

2022-08-17 14:22:56 +02:00

Kconfig

…

Makefile

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readdir.c

fuse: fix readdir cache race

2022-11-16 09:58:13 +01:00

virtio_fs.c

…

xattr.c

…