laptops-kernel/tools/testing/selftests/exec/config at topic/glymur-laptops - laptops-kernel - ProxGit

linuxmsm/laptops-kernel

mirror of https://github.com/linux-msm/laptops-kernel.git synced 2026-08-13 14:19:53 -07:00

Files

T

Christian Brauner 4bdcf682a4 selftests/exec: check that a binfmt_misc instance cannot be pinned

An 'F' entry whose interpreter keeps the binfmt_misc superblock alive
pins the instance that owns it forever. Cover both ways to build that:

- an interpreter on the instance's own files, control file and entry
  file alike

- and an instance used as an overlayfs lower layer.

Check that an ordinary 'F' registration still succeeds so the fix stays
honest about not changing what 'F' promises.

Link: https://patch.msgid.link/20260728-work-binfmt_misc-selfpin-v1-2-74df5daeca5b@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

2026-07-28 16:00:13 +02:00

13 lines

246 B

Plaintext

Raw Permalink Blame History

 CONFIG_BLK_DEV=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BINFMT_MISC=y
 CONFIG_BINFMT_MISC_BPF=y
 CONFIG_BPF_JIT=y
 CONFIG_BPF_SYSCALL=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_INFO_BTF=y
 CONFIG_DEBUG_INFO_DWARF4=y
 CONFIG_OVERLAY_FS=y
 CONFIG_TMPFS=y
 CONFIG_USER_NS=y