diff options
| author | Leon Romanovsky <leon@kernel.org> | 2024-06-16 10:51:25 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2024-06-16 10:51:25 +0300 |
| commit | ef5513526bb6a83d7777acf5b79f71d19865563c (patch) | |
| tree | 830e4616f84969ef55914bca55d69beac5a2543c /kernel/trace/bpf_trace.c | |
| parent | 2a1251e3dbb2995100b6f351c2452228895386a5 (diff) | |
| parent | 7fc45cb68696c7213c484ec81892bc8a986fde52 (diff) | |
Merge branch 'mana-shared' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Leon Romanovsky says:
====================
net: mana: Allow variable size indirection table
Like we talked, I created new shared branch for this patch:
https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/log/?h=mana-shared
* 'mana-shared' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
net: mana: Allow variable size indirection table
====================
Link: https://lore.kernel.org/all/20240612183051.GE4966@unreal
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'kernel/trace/bpf_trace.c')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index f5154c051d2c..d1daeab1bbc1 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -3295,7 +3295,7 @@ static int uprobe_prog_run(struct bpf_uprobe *uprobe, struct bpf_run_ctx *old_run_ctx; int err = 0; - if (link->task && current != link->task) + if (link->task && current->mm != link->task->mm) return 0; if (sleepable) @@ -3396,8 +3396,9 @@ int bpf_uprobe_multi_link_attach(const union bpf_attr *attr, struct bpf_prog *pr upath = u64_to_user_ptr(attr->link_create.uprobe_multi.path); uoffsets = u64_to_user_ptr(attr->link_create.uprobe_multi.offsets); cnt = attr->link_create.uprobe_multi.cnt; + pid = attr->link_create.uprobe_multi.pid; - if (!upath || !uoffsets || !cnt) + if (!upath || !uoffsets || !cnt || pid < 0) return -EINVAL; if (cnt > MAX_UPROBE_MULTI_CNT) return -E2BIG; @@ -3421,11 +3422,8 @@ int bpf_uprobe_multi_link_attach(const union bpf_attr *attr, struct bpf_prog *pr goto error_path_put; } - pid = attr->link_create.uprobe_multi.pid; if (pid) { - rcu_read_lock(); - task = get_pid_task(find_vpid(pid), PIDTYPE_PID); - rcu_read_unlock(); + task = get_pid_task(find_vpid(pid), PIDTYPE_TGID); if (!task) { err = -ESRCH; goto error_path_put; @@ -3519,7 +3517,6 @@ static u64 bpf_uprobe_multi_entry_ip(struct bpf_run_ctx *ctx) } #endif /* CONFIG_UPROBES */ -#ifdef CONFIG_FPROBE __bpf_kfunc_start_defs(); __bpf_kfunc bool bpf_session_is_return(void) @@ -3568,4 +3565,3 @@ static int __init bpf_kprobe_multi_kfuncs_init(void) } late_initcall(bpf_kprobe_multi_kfuncs_init); -#endif |