Joshua Rogers d4b69a6186 SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf ...

A zero length gss_token results in pages == 0 and in_token->pages[0]
is NULL. The code unconditionally evaluates
page_address(in_token->pages[0]) for the initial memcpy, which can
dereference NULL even when the copy length is 0. Guard the first
memcpy so it only runs when length > 0.

Fixes: 5866efa8cb ("SUNRPC: Fix svcauth_gss_proxy_init()")
Cc: stable@vger.kernel.org
Signed-off-by: Joshua Rogers <linux@joshua.hu>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

2025-12-08 10:51:26 -05:00

..

auth_gss_internal.h

mm: change inlined allocation helpers to account at the call site

2024-04-25 20:55:59 -07:00

auth_gss.c

Merge tag 'pull-rpc_pipefs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2025-07-28 09:56:09 -07:00

gss_krb5_crypto.c

SUNRPC: Silence warnings about parameters not being described

2025-07-22 08:10:41 -04:00

gss_krb5_internal.h

SUNRPC: Remove unused make_checksum

2025-03-10 09:10:58 -04:00

gss_krb5_keys.c

gss_krb5: Fix the error handling path for crypto_sync_skcipher_setkey

2024-07-08 14:10:06 -04:00

gss_krb5_mech.c

SUNRPC: fix a memleak in gss_import_v2_context

2024-03-01 09:12:04 -05:00

gss_krb5_seal.c

SUNRPC: Remove code behind CONFIG_RPCSEC_GSS_KRB5_SIMPLIFIED

2023-08-29 17:45:22 -04:00

gss_krb5_test.c

module: Convert symbol namespace to string literal

2024-12-02 11:34:44 -08:00

gss_krb5_unseal.c

SUNRPC: Do not include crypto/algapi.h

2023-09-15 18:30:43 +08:00

gss_krb5_wrap.c

SUNRPC: Remove code behind CONFIG_RPCSEC_GSS_KRB5_SIMPLIFIED

2023-08-29 17:45:22 -04:00

gss_mech_switch.c

sunrpc: Remove gss_generic_token deadcode

2025-01-21 15:30:01 -05:00

gss_rpc_upcall.c

SUNRPC: Ensure that the gssproxy client can start in a connected state

2022-05-07 14:31:15 -04:00

gss_rpc_upcall.h

SUNRPC: Add SPDX IDs to some net/sunrpc/auth_gss/ files

2019-02-14 09:54:37 -05:00

gss_rpc_xdr.c

SUNRPC: Update gssx_accept_sec_context() to use xdr_set_scratch_folio()

2025-09-23 13:29:50 -04:00

gss_rpc_xdr.h

SUNRPC: Add SPDX IDs to some net/sunrpc/auth_gss/ files

2019-02-14 09:54:37 -05:00

Makefile

sunrpc: Remove gss_generic_token deadcode

2025-01-21 15:30:01 -05:00

svcauth_gss.c

SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf

2025-12-08 10:51:26 -05:00

trace.c

SUNRPC: remove duplicate include

2020-08-19 13:19:42 -04:00