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net: allow skb_release_head_state() to be called multiple times

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Currently, only skb dst is cleared (thanks to skb_dst_drop())

Make sure skb->destructor, conntrack and extensions are cleared.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20251106202935.1776179-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet
2025-11-06 20:29:33 +00:00
committed by Jakub Kicinski
parent fd9557c360
commit 1fcf572211
1 changed files with 3 additions and 4 deletions
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7
net/core/skbuff.c
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@@ -1149,11 +1149,10 @@ void skb_release_head_state(struct sk_buff *skb)
skb); skb);
#endif #endif
skb->destructor = NULL;
} }
#if IS_ENABLED(CONFIG_NF_CONNTRACK) nf_reset_ct(skb);
nf_conntrack_put(skb_nfct(skb)); skb_ext_reset(skb);
#endif
skb_ext_put(skb);
} }
/* Free everything but the sk_buff shell. */ /* Free everything but the sk_buff shell. */