CVE-2025-38639

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_nfacct: don't assume acct name is null-terminated BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721 Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851 [..] string+0x231/0x2b0 lib/vsprintf.c:721 vsnprintf+0x739/0xf00 lib/vsprintf.c:2874 [..] nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523 nfnl_acct_find_get() handles non-null input, but the error printk relied on its presence.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-25)

Published

2025-08-22

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• linux:linux_kernel

References

• https://git.kernel.org/stable/c/58004aa21e79addaf41667bfe65e93ec51653f18
• https://git.kernel.org/stable/c/58007fc7b94fb2702000045ff401eb7f5bde7828
• https://git.kernel.org/stable/c/66d41268ede1e1b6e71ba28be923397ff0b2b9c3
• https://git.kernel.org/stable/c/7c1ae471da69c09242834e956218ea6a42dd405a
• https://git.kernel.org/stable/c/b10cfa2de13d28ddd03210eb234422b7ec92725a

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