Answer in brief
CVE-2025-38639 records a Unknown severity vulnerability in netfilter: xt_nfacct: don't assume acct name is null-terminated. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-38639 records a Unknown severity vulnerability in netfilter: xt_nfacct: don't assume acct name is null-terminated. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <66d41268ede1e1b6e71ba28be923397ff0b2b9c3 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <e021a1eee196887536a6630c5492c23a4c78d452 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <b10cfa2de13d28ddd03210eb234422b7ec92725a || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <e18939176e657a3a20bfbed357b8c55a9f82aba3 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <58004aa21e79addaf41667bfe65e93ec51653f18 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <7c1ae471da69c09242834e956218ea6a42dd405a || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <58007fc7b94fb2702000045ff401eb7f5bde7828 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <bf58e667af7d96c8eb9411f926a0a0955f41ce21 | 66d41268ede1e1b6e71ba28be923397ff0b2b9c3, e021a1eee196887536a6630c5492c23a4c78d452, b10cfa2de13d28ddd03210eb234422b7ec92725a, e18939176e657a3a20bfbed357b8c55a9f82aba3, 58004aa21e79addaf41667bfe65e93ec51653f18, 7c1ae471da69c09242834e956218ea6a42dd405a, 58007fc7b94fb2702000045ff401eb7f5bde7828, df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13, bf58e667af7d96c8eb9411f926a0a0955f41ce21 |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
Aug 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <66d41268ede1e1b6e71ba28be923397ff0b2b9c3 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <e021a1eee196887536a6630c5492c23a4c78d452 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <b10cfa2de13d28ddd03210eb234422b7ec92725a || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <e18939176e657a3a20bfbed357b8c55a9f82aba3 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <58004aa21e79addaf41667bfe65e93ec51653f18 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <7c1ae471da69c09242834e956218ea6a42dd405a || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <58007fc7b94fb2702000045ff401eb7f5bde7828 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13 || >=ceb98d03eac5704820f2ac1f370c9ff385e3a9f5 <bf58e667af7d96c8eb9411f926a0a0955f41ce21 | 66d41268ede1e1b6e71ba28be923397ff0b2b9c3, e021a1eee196887536a6630c5492c23a4c78d452, b10cfa2de13d28ddd03210eb234422b7ec92725a, e18939176e657a3a20bfbed357b8c55a9f82aba3, 58004aa21e79addaf41667bfe65e93ec51653f18, 7c1ae471da69c09242834e956218ea6a42dd405a, 58007fc7b94fb2702000045ff401eb7f5bde7828, df13c9c6ce1d55c31d1bd49db65a7fbbd86aab13, bf58e667af7d96c8eb9411f926a0a0955f41ce21 |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
Aug 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.