net: tls: fix use-after-free with partial reads and async decrypt

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[ Upstream commit 32b55c5ff9 ]

tls_decrypt_sg doesn't take a reference on the pages from clear_skb,
so the put_page() in tls_decrypt_done releases them, and we trigger
a use-after-free in process_rx_list when we try to read from the
partially-read skb.

Fixes: fd31f3996a ("tls: rx: decrypt into a fresh skb")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Sabrina Dubroca 2024-02-06 17:18:22 -08:00 • committed by Greg Kroah-Hartman

parent 7a3ca06d04

commit 20b4ed0348

1 changed files with 3 additions and 2 deletions

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net/tls/tls_sw.c

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