On Tue, Aug 06, 2024 at 10:26:17PM +0800, kernel test robot wrote:
> kernel test robot noticed "kernel_BUG_at_include/linux/page-flags.h" on:
>
> commit: cdc4ad36a871b7ac43fcc6b2891058d332ce60ce ("fs: Convert
> aops->write_begin to take a folio")
> https://git.kernel.org/cgit/linux/kernel/git/nex
On Tue, Aug 06, 2024 at 04:07:16PM +0200, Jann Horn via Linux-f2fs-devel wrote:
> The F2FS ioctls for starting and committing atomic writes check for
> inode_owner_or_capable(), but this does not give LSMs like SELinux or
> Landlock an opportunity to deny the write access - if the caller's FSUID
>
b: 5e pop%rsi
c: c3 ret
d: 90 nop
e: 89 54 24 0c mov%edx,0xc(%rsp)
12: 89 4c 24 08 mov%ecx,0x8(%rsp)
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/a
+
if (!inode_owner_or_capable(idmap, inode))
return -EACCES;
ret = mnt_want_write_file(filp);
if (ret)
return ret;
---
base-commit: b446a2dae984fa5bd56dd7c3a02a426f87e05813
change-id: 20240806-
