shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-03-25 20:10:23 +09:00
Code Issues Packages Projects Releases Wiki Activity

ANDROID: fuse-bpf: Add NULL pointer check in fuse_release_in

Browse Source 
If open request sent to classic fuse, backing_file is null.
In fuse_release_initialize, fput will trigger a crash.

Bug: 297831741
Signed-off-by: liujing40 <liujing40@xiaomi.corp-partner.google.com>
(cherry picked from https://android-review.googlesource.com/q/commit:4d2ff573981f06ba09e1ddda8726bb73ff6a2c3f)
Merged-In: I2d54d99d62b54c39a6dc9064f8f62488433aff6f
Change-Id: I2d54d99d62b54c39a6dc9064f8f62488433aff6f
This commit is contained in:
liujing40
2023-10-25 15:26:27 +08:00
committed by Treehugger Robot
parent 4030b1eeed
commit 6ac8b4fbb4
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/fuse/backing.c
View File

@@ -300,7 +300,9 @@ int fuse_release_initialize(struct fuse_bpf_args *fa, struct fuse_release_in *fr
struct inode *inode, struct fuse_file *ff)
{
/* Always put backing file whatever bpf/userspace says */
fput(ff->backing_file);
if (ff->backing_file) {
fput(ff->backing_file);
}
*fri = (struct fuse_release_in) {
.fh = ff->fh,