CVE-2023-53716
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in __skb_tstamp_tx() Commit 50749f2dd685 ("tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.") added a call to skb_orphan_frags_rx() to fix leaks with zerocopy skbs. But it ended up adding a leak of its own. When skb_orphan_frags_rx() fails, the function just returns, leaking the skb it just cloned. Free it before returning. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-10-22 14:15:46.250000
Last modified
2026-10-28 19:10:00.193000
View original CVE JSON
{
"id": "CVE-2023-53716",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-10-22T14:15:46.250",
"lastModified": "2026-10-28T19:10:00.193",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix skb leak in __skb_tstamp_tx()\n\nCommit 50749f2dd685 (\"tcp/udp: Fix memleaks of sk and zerocopy skbs with\nTX timestamp.\") added a call to skb_orphan_frags_rx() to fix leaks with\nzerocopy skbs. But it ended up adding a leak of its own. When\nskb_orphan_frags_rx() fails, the function just returns, leaking the skb\nit just cloned. Free it before returning.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: corrige fuga de skb en __skb_tstamp_tx()\n\nEl commit 50749f2dd685 (’tcp/udp: Corrige fugas de memoria de sk y skbs zerocopy con marca de tiempo TX.’) añadió una llamada a skb_orphan_frags_rx() para corregir fugas con skbs zerocopy. Pero terminó añadiendo una fuga propia. Cuando skb_orphan_frags_rx() falla, la función simplemente retorna, provocando una fuga del skb que acaba de clonar. Libéralo antes de retornar.\n\nEste error fue descubierto y resuelto utilizando Coverity Static Analysis Security Testing (SAST) por Synopsys, Inc."
}
],
"affected": [
{
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"affectedData": [
{
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"defaultStatus": "unaffected",
"programFiles": [
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],
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{
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"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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{
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{
"version": "4.19.283",
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{
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{
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{
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{
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}
],
"metrics": {},
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}