Patch "bpf: Fix memory leak in bpf_core_apply" has been added to the 6.6-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    bpf: Fix memory leak in bpf_core_apply

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     bpf-fix-memory-leak-in-bpf_core_apply.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit a05e07699ca84a232fca25d368f864e4f663ba1a
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
Date:   Mon Oct 7 18:09:58 2024 +0200

    bpf: Fix memory leak in bpf_core_apply
    
    [ Upstream commit 45126b155e3b5201179cdc038504bf93a8ccd921 ]
    
    We need to free specs properly.
    
    Fixes: 3d2786d65aaa ("bpf: correctly handle malformed BPF_CORE_TYPE_ID_LOCAL relos")
    Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
    Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
    Acked-by: Eduard Zingerman <eddyz87@xxxxxxxxx>
    Link: https://lore.kernel.org/bpf/20241007160958.607434-1-jolsa@xxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index e0e4d4f490e87..c8828016a66fd 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -8435,6 +8435,7 @@ int bpf_core_apply(struct bpf_core_ctx *ctx, const struct bpf_core_relo *relo,
 	if (!type) {
 		bpf_log(ctx->log, "relo #%u: bad type id %u\n",
 			relo_idx, relo->type_id);
+		kfree(specs);
 		return -EINVAL;
 	}