CVE-2024-36270

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: tproxy: bail out if IP has been disabled on the device syzbot reports: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [..] RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62 Call Trace: nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline] nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168 __in_dev_get_rcu() can return NULL, so check for this.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/07eeedafc59c45fe5de43958128542be3784764c ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/07eeedafc59c45fe5de43958128542be3784764cPatch
• https://git.kernel.org/stable/c/10f0af5234dafd03d2b75233428ec3f11cf7e43dPatch
• https://git.kernel.org/stable/c/21a673bddc8fd4873c370caf9ae70ffc6d47e8d3Patch
• https://git.kernel.org/stable/c/570b4c52096e62fda562448f5760fd0ff06110f0Patch
• https://git.kernel.org/stable/c/6fe5af4ff06db3d4d80e07a19356640428159f03Patch
• https://git.kernel.org/stable/c/819bfeca16eb9ad647ddcae25e7e12c30612147cPatch
• https://git.kernel.org/stable/c/caf3a8afb5ea00db6d5398adf148d5534615fd80Patch