diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2026-03-12 12:38:59 +0100 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2026-03-13 15:31:15 +0100 |
| commit | 0548a13b5a145b16e4da0628b5936baf35f51b43 (patch) | |
| tree | 245618b0f3a5e5ccff54fe66059b15c33089b59c /include/uapi/linux/wimax/git@git.tavy.me:linux.git | |
| parent | 1e3a3593162c96e8a8de48b1e14f60c3b57fca8a (diff) | |
nf_tables: nft_dynset: fix possible stateful expression memleak in error path
If cloning the second stateful expression in the element via GFP_ATOMIC
fails, then the first stateful expression remains in place without being
released.
unreferenced object (percpu) 0x607b97e9cab8 (size 16):
comm "softirq", pid 0, jiffies 4294931867
hex dump (first 16 bytes on cpu 3):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
backtrace (crc 0):
pcpu_alloc_noprof+0x453/0xd80
nft_counter_clone+0x9c/0x190 [nf_tables]
nft_expr_clone+0x8f/0x1b0 [nf_tables]
nft_dynset_new+0x2cb/0x5f0 [nf_tables]
nft_rhash_update+0x236/0x11c0 [nf_tables]
nft_dynset_eval+0x11f/0x670 [nf_tables]
nft_do_chain+0x253/0x1700 [nf_tables]
nft_do_chain_ipv4+0x18d/0x270 [nf_tables]
nf_hook_slow+0xaa/0x1e0
ip_local_deliver+0x209/0x330
Fixes: 563125a73ac3 ("netfilter: nftables: generalize set extension to support for several expressions")
Reported-by: Gurpreet Shergill <giki.shergill@proton.me>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'include/uapi/linux/wimax/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions