[PATCH bpf-next v3 0/9] Fixes for bpf_jit_free

[Pu Lehui]

From: Pu Lehui <pulehui@xxxxxxxxxx>

Fixes for bpf_jit_free identified by Sashiko, as previously noted in [0].

Link: https://lore.kernel.org/bpf/28ba19a4-b487-49fd-bbba-04410acdb113@xxxxxxxxxxxxx/ [0]

v3:
- Add fix for private stack leak on arm64. (Sashiko)
- Some minor fixes.

v2: https://lore.kernel.org/bpf/20260725102020.2287770-1-pulehui@xxxxxxxxxxxxxxx
- Fix JITs not freeing leftover jit_data when jit_subprogs() aborts. (Sashiko)
- Drop fix for loongarch as it's applied.

v1: https://lore.kernel.org/bpf/20260722112754.1615201-1-pulehui@xxxxxxxxxxxxxxx


Pu Lehui (9):
  bpf: Extract the bpf_jit_binary_hdr helper
  s390/bpf: Fix memory leak in bpf_jit_free
  parisc: Fix memory leak in bpf_jit_free
  bpf, sparc64: Fix memory leak in bpf_jit_free
  ARC, bpf: Fix memory leak in bpf_jit_free
  bpf, arm64: Fix memory leak in bpf_jit_free
  bpf, arm64: Fix private stack leak when JIT failed
  riscv, bpf: Adjust bpf_func to account for CFI offset in bpf_jit_free
  bpf: Fix double-free RO header in bpf_jit_free

 arch/arc/net/bpf_jit_core.c      | 19 +++++++++++++++++++
 arch/arm64/net/bpf_jit_comp.c    |  6 +++---
 arch/loongarch/net/bpf_jit.c     |  6 ++----
 arch/parisc/net/bpf_jit_core.c   | 19 +++++++++++++++++++
 arch/powerpc/net/bpf_jit_comp.c  |  5 +++--
 arch/riscv/net/bpf_jit_core.c    |  8 +++-----
 arch/s390/net/bpf_jit_comp.c     | 19 +++++++++++++++++++
 arch/sparc/net/bpf_jit_comp_64.c | 19 +++++++++++++++++++
 arch/x86/net/bpf_jit_comp.c      |  7 ++-----
 include/linux/filter.h           |  2 ++
 kernel/bpf/core.c                | 19 ++++++++++---------
 11 files changed, 101 insertions(+), 28 deletions(-)

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2.34.1