[PATCH bpf v3 0/3] Fixes for bpf link update

[Pu Lehui]

From: Pu Lehui <pulehui@xxxxxxxxxx>

patch 1: fix for UAF issue when reading bpf link info.
patch 2: fix for storage not restored when update_effective_progs failed.
patch 3: Fix storage null-ptr-deref after replacing prog in cgrp_bpf.

v3:
- Add new fix for UAF issue when reading bpf link info. (Sashiko)
- Add new fix for storage not restored when update_effective_progs
  failed. (Sashiko)

v2:
https://lore.kernel.org/bpf/20260717073343.958862-1-pulehui@xxxxxxxxxxxxxxx
- Fix invalid access for in-place update when storage changed. (Sashiko)

v1:
https://lore.kernel.org/bpf/20260714014659.401063-1-pulehui@xxxxxxxxxxxxxxx

Pu Lehui (3):
  bpf: Fix potential UAF when reading bpf link info
  bpf, cgroup: Fix storage not restored when update_effective_progs
    failed
  bpf, cgroup: Fix storage null-ptr-deref after replacing prog

 kernel/bpf/cgroup.c  | 40 +++++++++++++++++++++++++++++++++++++++-
 kernel/bpf/syscall.c | 27 +++++++++++++++++++++++----
 2 files changed, 62 insertions(+), 5 deletions(-)

-- 
2.34.1