diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2020-06-02 19:43:39 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-06-02 21:00:56 +0200 |
| commit | effe5be17706167ee968fa28afe40dec9c6f71db (patch) | |
| tree | 042cec5b556b86838e1dacb94a58268d3396dadc /arch/s390/net/bpf_jit.h | |
| parent | 7cec0b927142f510a1fac88033017616cce44c26 (diff) | |
s390/bpf: Maintain 8-byte stack alignment
Certain kernel functions (e.g. get_vtimer/set_vtimer) cause kernel
panic when the stack is not 8-byte aligned. Currently JITed BPF programs
may trigger this by allocating stack frames with non-rounded sizes and
then being interrupted. Fix by using rounded fp->aux->stack_depth.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200602174339.2501066-1-iii@linux.ibm.com
Diffstat (limited to 'arch/s390/net/bpf_jit.h')
0 files changed, 0 insertions, 0 deletions