CVE-2024-50258
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix crash when config small gso_max_size/gso_ipv4_max_size Config a small gso_max_size/gso_ipv4_max_size will lead to an underflow in sk_dst_gso_max_size(), which may trigger a BUG_ON crash, because sk->sk_gso_max_size would be much bigger than device limits. Call Trace: tcp_write_xmit tso_segs = tcp_init_tso_segs(skb, mss_now); tcp_set_skb_tso_segs tcp_skb_pcount_set // skb->len = 524288, mss_now = 8 // u16 tso_segs = 524288/8 = 65535 -> 0 tso_segs = DIV_ROUND_UP(skb->len, mss_now) BUG_ON(!tso_segs) Add check for the minimum value of gso_max_size and gso_ipv4_max_size.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2024-11-09 11:15:11.413000
Last modified
2026-11-05 21:17:33.737000
View original CVE JSON
{
"id": "CVE-2024-50258",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-11-09T11:15:11.413",
"lastModified": "2026-11-05T21:17:33.737",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix crash when config small gso_max_size/gso_ipv4_max_size\n\nConfig a small gso_max_size/gso_ipv4_max_size will lead to an underflow\nin sk_dst_gso_max_size(), which may trigger a BUG_ON crash,\nbecause sk->sk_gso_max_size would be much bigger than device limits.\nCall Trace:\ntcp_write_xmit\n tso_segs = tcp_init_tso_segs(skb, mss_now);\n tcp_set_skb_tso_segs\n tcp_skb_pcount_set\n // skb->len = 524288, mss_now = 8\n // u16 tso_segs = 524288/8 = 65535 -> 0\n tso_segs = DIV_ROUND_UP(skb->len, mss_now)\n BUG_ON(!tso_segs)\nAdd check for the minimum value of gso_max_size and gso_ipv4_max_size."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: se corrige el fallo al configurar un gso_max_size/gso_ipv4_max_size pequeño. Configurar un gso_max_size/gso_ipv4_max_size pequeño provocará un desbordamiento en sk_dst_gso_max_size(), lo que puede desencadenar un fallo BUG_ON, porque sk->sk_gso_max_size sería mucho mayor que los límites del dispositivo. Seguimiento de llamadas: tcp_write_xmit tso_segs = tcp_init_tso_segs(skb, mss_now); tcp_set_skb_tso_segs tcp_skb_pcount_set // skb->len = 524288, mss_now = 8 // u16 tso_segs = 524288/8 = 65535 -> 0 tso_segs = DIV_ROUND_UP(skb->len, mss_now) BUG_ON(!tso_segs) Agregar verificación para el valor mínimo de gso_max_size y gso_ipv4_max_size."
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"baseScore": 5.5,
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"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
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"id": "CVE-2024-50258",
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"weaknesses": [
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"source": "[email protected]",
"type": "Primary",
"description": [
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