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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-14 22:03:53 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-14 22:03:53 +0200 |
| commit | 74cbb480d0efa61efa09e5ebd081a32e1d355bba (patch) | |
| tree | 9e32fe16349d823d8b58deea5d614a9675821c57 | |
| parent | Merge tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kern... (diff) | |
| parent | take care to handle NULL ->proc_lseek() (diff) | |
| download | linux-74cbb480d0efa61efa09e5ebd081a32e1d355bba.tar.xz linux-74cbb480d0efa61efa09e5ebd081a32e1d355bba.zip | |
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs lseek fix from Al Viro:
"Fix proc_reg_llseek() breakage. Always had been possible if somebody
left NULL ->proc_lseek, became a practical issue now"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
take care to handle NULL ->proc_lseek()
| -rw-r--r-- | fs/proc/inode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/proc/inode.c b/fs/proc/inode.c index f130499ad843..f495fdb39151 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -494,6 +494,9 @@ static int proc_reg_open(struct inode *inode, struct file *file) typeof_member(struct proc_ops, proc_release) release; struct pde_opener *pdeo; + if (!pde->proc_ops->proc_lseek) + file->f_mode &= ~FMODE_LSEEK; + if (pde_is_permanent(pde)) { open = pde->proc_ops->proc_open; if (open) |