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.
References
Configurations
Configuration 1 (hide)
|
History
14 Nov 2024, 18:12
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-191 | |
| References | () https://git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4 - Patch | |
| References | () https://git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8 - Patch | |
| References | () https://git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486 - Patch | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
12 Nov 2024, 13:56
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
09 Nov 2024, 11:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-11-09 11:15
Updated : 2024-11-14 18:12
NVD link : CVE-2024-50258
Mitre link : CVE-2024-50258
CVE.ORG link : CVE-2024-50258
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-191
Integer Underflow (Wrap or Wraparound)