Red Hat: CVE-2024-36270: kernel: netfilter: tproxy: bail out if IP has been disabled on the device (Multiple Advisories)

Red Hat: CVE-2024-36270: kernel: netfilter: tproxy: bail out if IP has been disabled on the device (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

06/21/2024

Created

08/13/2024

Added

08/12/2024

Modified

12/05/2024

Description

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.

Solution(s)

• redhat-upgrade-kernel
• redhat-upgrade-kernel-rt

References

• CVE-2024-36270
• RHSA-2024:4583
• RHSA-2024:5101
• RHSA-2024:5102
• RHSA-2024:6993
• RHSA-2024:7489
• RHSA-2024:7490

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