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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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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()
This commit is contained in:
Linus Torvalds
2022-08-14 13:03:53 -07:00
parent 5d6a0f4da9 3f61631d47
commit 74cbb480d0
1 changed files with 3 additions and 0 deletions
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3
fs/proc/inode.c
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@@ -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)