{"id":"CVE-2025-38639","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_nfacct: don't assume acct name is null-terminated\n\nBUG: KASAN: slab-out-of-bounds in .","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_nfacct: don't assume acct name is null-terminated\n\nBUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721\nRead of size 1 at addr ffff88801eac95c8 by task…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.3, < 5.4.297","linux_kernel >= 5.5, < 5.10.241","linux_kernel >= 5.11, < 5.15.190","linux_kernel >= 5.16, < 6.1.148","linux_kernel >= 6.2, < 6.6.102","linux_kernel >= 6.7, < 6.12.42","linux_kernel >= 6.13, < 6.15.10","linux_kernel >= 6.16, < 6.16.1","debian_linux = 11.0"],"patched":["linux_kernel 6.16.1"],"published":"2025-08-22","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:18:47.683","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-38639","references":[{"url":"https://git.kernel.org/stable/c/58004aa21e79addaf41667bfe65e93ec51653f18","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/58007fc7b94fb2702000045ff401eb7f5bde7828","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/66d41268ede1e1b6e71ba28be923397ff0b2b9c3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7c1ae471da69c09242834e956218ea6a42dd405a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b10cfa2de13d28ddd03210eb234422b7ec92725a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bf58e667af7d96c8eb9411f926a0a0955f41ce21","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e021a1eee196887536a6630c5492c23a4c78d452","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e18939176e657a3a20bfbed357b8c55a9f82aba3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"epss":0.00187,"epssPercentile":0.08191,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T21:52:25.310432Z"},"ingestedAt":"2026-10-15T22:48:25.516Z","slug":"CVE-2025-38639","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_nfacct: don't assume acct name is null-terminated\n\nBUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721\nRead of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851\n[..]\n string+0x231/0x2b0 lib/vsprintf.c:721\n vsnprintf+0x739/0xf00 lib/vsprintf.c:2874\n [..]\n nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41\n xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523\n\nnfnl_acct_find_get() handles non-null input, but the error\nprintk relied on its presence.\n\n## Affected\n\n- `linux_kernel >= 3.3, < 5.4.297`\n- `linux_kernel >= 5.5, < 5.10.241`\n- `linux_kernel >= 5.11, < 5.15.190`\n- `linux_kernel >= 5.16, < 6.1.148`\n- `linux_kernel >= 6.2, < 6.6.102`\n- `linux_kernel >= 6.7, < 6.12.42`\n- `linux_kernel >= 6.13, < 6.15.10`\n- `linux_kernel >= 6.16, < 6.16.1`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.16.1`","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}