diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-16 20:46:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-16 20:46:20 +0200 |
| commit | 5f19ca4e014f2bd4088b78f31426f0ba3b8e6a3c (patch) | |
| tree | 7357ef42d49b5ff46e1f9c7d0f873a3606b612f4 /kernel/bpf/syscall.c | |
| parent | d712d205210c494c29f33dc1d1f2ce4d7448faa9 (diff) | |
| parent | 58720809f52779dc0f08e53e54b014209d13eebb (diff) | |
Merge 6.6-rc6 into char-misc-next
We need the char/misc fixes in here as well, to build on for other
changes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index eb01c31ed591d..d77b2f8b93641 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -3796,7 +3796,6 @@ static int bpf_prog_attach(const union bpf_attr *attr) { enum bpf_prog_type ptype; struct bpf_prog *prog; - u32 mask; int ret; if (CHECK_ATTR(BPF_PROG_ATTACH)) @@ -3805,10 +3804,16 @@ static int bpf_prog_attach(const union bpf_attr *attr) ptype = attach_type_to_prog_type(attr->attach_type); if (ptype == BPF_PROG_TYPE_UNSPEC) return -EINVAL; - mask = bpf_mprog_supported(ptype) ? - BPF_F_ATTACH_MASK_MPROG : BPF_F_ATTACH_MASK_BASE; - if (attr->attach_flags & ~mask) - return -EINVAL; + if (bpf_mprog_supported(ptype)) { + if (attr->attach_flags & ~BPF_F_ATTACH_MASK_MPROG) + return -EINVAL; + } else { + if (attr->attach_flags & ~BPF_F_ATTACH_MASK_BASE) + return -EINVAL; + if (attr->relative_fd || + attr->expected_revision) + return -EINVAL; + } prog = bpf_prog_get_type(attr->attach_bpf_fd, ptype); if (IS_ERR(prog)) @@ -3878,6 +3883,10 @@ static int bpf_prog_detach(const union bpf_attr *attr) if (IS_ERR(prog)) return PTR_ERR(prog); } + } else if (attr->attach_flags || + attr->relative_fd || + attr->expected_revision) { + return -EINVAL; } switch (ptype) { @@ -3913,7 +3922,7 @@ static int bpf_prog_detach(const union bpf_attr *attr) return ret; } -#define BPF_PROG_QUERY_LAST_FIELD query.link_attach_flags +#define BPF_PROG_QUERY_LAST_FIELD query.revision static int bpf_prog_query(const union bpf_attr *attr, union bpf_attr __user *uattr) |