Gavrilov Ilia b7b4be1fa4 xsk: fix an integer overflow in xp_create_and_assign_umem() ...

commit 559847f567 upstream.

Since the i and pool->chunk_size variables are of type 'u32',
their product can wrap around and then be cast to 'u64'.
This can lead to two different XDP buffers pointing to the same
memory area.

Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.

Fixes: 94033cd8e7 ("xsk: Optimize for aligned case")
Cc: stable@vger.kernel.org
Signed-off-by: Ilia Gavrilov <Ilia.Gavrilov@infotecs.ru>
Link: https://patch.msgid.link/20250313085007.3116044-1-Ilia.Gavrilov@infotecs.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-03-28 21:59:55 +01:00

..

Kconfig

…

Makefile

…

xdp_umem.c

…

xdp_umem.h

…

xsk_buff_pool.c

xsk: fix an integer overflow in xp_create_and_assign_umem()

2025-03-28 21:59:55 +01:00

xsk_diag.c

sock_diag: add module pointer to "struct sock_diag_handler"

2024-12-09 10:32:09 +01:00

xsk_queue.c

…

xsk_queue.h

…

xsk.c

xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING

2024-04-17 11:19:28 +02:00

xsk.h

…

xskmap.c

xsk: fix OOB map writes when deleting elements

2024-12-14 19:59:57 +01:00