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| author | Xingyuan Mo <hdthky0@gmail.com> | 2023-10-09 13:36:15 +0300 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2023-10-12 11:28:45 +0300 |
| commit | 505ce0630ad5d31185695f8a29dde8d29f28faa7 (patch) | |
| tree | ee9f50b19eeb959cc0f66f72e4820f510cad0640 /net/tls | |
| parent | 52177bbf19e6e9398375a148d2e13ed492b40b80 (diff) | |
| download | linux-505ce0630ad5d31185695f8a29dde8d29f28faa7.tar.xz | |
nf_tables: fix NULL pointer dereference in nft_expr_inner_parse()
We should check whether the NFTA_EXPR_NAME netlink attribute is present
before accessing it, otherwise a null pointer deference error will occur.
Call Trace:
<TASK>
dump_stack_lvl+0x4f/0x90
print_report+0x3f0/0x620
kasan_report+0xcd/0x110
__asan_load2+0x7d/0xa0
nla_strcmp+0x2f/0x90
__nft_expr_type_get+0x41/0xb0
nft_expr_inner_parse+0xe3/0x200
nft_inner_init+0x1be/0x2e0
nf_tables_newrule+0x813/0x1230
nfnetlink_rcv_batch+0xec3/0x1170
nfnetlink_rcv+0x1e4/0x220
netlink_unicast+0x34e/0x4b0
netlink_sendmsg+0x45c/0x7e0
__sys_sendto+0x355/0x370
__x64_sys_sendto+0x84/0xa0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Fixes: 3a07327d10a0 ("netfilter: nft_inner: support for inner tunnel header matching")
Signed-off-by: Xingyuan Mo <hdthky0@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'net/tls')
0 files changed, 0 insertions, 0 deletions