In the Linux kernel, the following vulnerability has been resolved: nftables: nftdynset: fix possible stateful expression memleak in error path If cloning the second stateful expression in the element via GFPATOMIC 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): pcpuallocnoprof+0x453/0xd80 nftcounterclone+0x9c/0x190 [nftables] nftexprclone+0x8f/0x1b0 [nftables] nftdynsetnew+0x2cb/0x5f0 [nftables] nftrhashupdate+0x236/0x11c0 [nftables] nftdynseteval+0x11f/0x670 [nftables] nftdochain+0x253/0x1700 [nftables] nftdochainipv4+0x18d/0x270 [nftables] nfhookslow+0xaa/0x1e0 iplocal_deliver+0x209/0x330