CVE-2024-50258

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux46e6b992c2502b094e61da6994f1363f3b7c1413 < 90c8482a5d9791259ba77bfdc1849fc5128b4be7affected
LinuxLinux46e6b992c2502b094e61da6994f1363f3b7c1413 < e9365368b483328639c03fc730448dccd5a25b6baffected
LinuxLinux46e6b992c2502b094e61da6994f1363f3b7c1413 < ac5977001eee7660c643f8e07a2de9001990b7b8affected
LinuxLinux46e6b992c2502b094e61da6994f1363f3b7c1413 < e72fd1389a5364bc6aa6312ecf30bdb5891b9486affected
LinuxLinux46e6b992c2502b094e61da6994f1363f3b7c1413 < 9ab5cf19fb0e4680f95e506d6c544259bf1111c4affected
LinuxLinux4.16affected
LinuxLinux0 < 4.16unaffected
LinuxLinux5.15.181 <= 5.15.*unaffected
LinuxLinux6.1.120 <= 6.1.*unaffected
LinuxLinux6.6.60 <= 6.6.*unaffected
LinuxLinux6.11.7 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References