CVE - CVE-2024-53042

CVE-ID
CVE-2024-53042	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow() There are code paths from which the function is called without holding the RCU read lock, resulting in a suspicious RCU usage warning [1]. Fix by using l3mdev_master_upper_ifindex_by_index() which will acquire the RCU read lock before calling l3mdev_master_upper_ifindex_by_index_rcu(). [1] WARNING: suspicious RCU usage 6.12.0-rc3-custom-gac8f72681cf2 #141 Not tainted ----------------------------- net/core/dev.c:876 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by ip/361: #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60 stack backtrace: CPU: 3 UID: 0 PID: 361 Comm: ip Not tainted 6.12.0-rc3-custom-gac8f72681cf2 #141 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Call Trace: <TASK> dump_stack_lvl+0xba/0x110 lockdep_rcu_suspicious.cold+0x4f/0xd6 dev_get_by_index_rcu+0x1d3/0x210 l3mdev_master_upper_ifindex_by_index_rcu+0x2b/0xf0 ip_tunnel_bind_dev+0x72f/0xa00 ip_tunnel_newlink+0x368/0x7a0 ipgre_newlink+0x14c/0x170 __rtnl_newlink+0x1173/0x19c0 rtnl_newlink+0x6c/0xa0 rtnetlink_rcv_msg+0x3cc/0xf60 netlink_rcv_skb+0x171/0x450 netlink_unicast+0x539/0x7f0 netlink_sendmsg+0x8c1/0xd80 ____sys_sendmsg+0x8f9/0xc20 ___sys_sendmsg+0x197/0x1e0 __sys_sendmsg+0x122/0x1f0 do_syscall_64+0xbb/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/5edcb3fdb12c3d46a6e79eeeec27d925b80fc168 URL:https://git.kernel.org/stable/c/5edcb3fdb12c3d46a6e79eeeec27d925b80fc168 MISC:https://git.kernel.org/stable/c/699b48fc31727792edf2cab3829586ae6ba649e2 URL:https://git.kernel.org/stable/c/699b48fc31727792edf2cab3829586ae6ba649e2 MISC:https://git.kernel.org/stable/c/6dfaa458fe923211c766238a224e0a3c0522935c URL:https://git.kernel.org/stable/c/6dfaa458fe923211c766238a224e0a3c0522935c MISC:https://git.kernel.org/stable/c/72c0f482e39c87317ebf67661e28c8d86c93e870 URL:https://git.kernel.org/stable/c/72c0f482e39c87317ebf67661e28c8d86c93e870 MISC:https://git.kernel.org/stable/c/ad4a3ca6a8e886f6491910a3ae5d53595e40597d URL:https://git.kernel.org/stable/c/ad4a3ca6a8e886f6491910a3ae5d53595e40597d MISC:https://git.kernel.org/stable/c/e2742758c9c85c84e077ede5f916479f724e11c2 URL:https://git.kernel.org/stable/c/e2742758c9c85c84e077ede5f916479f724e11c2
Assigning CNA
kernel.org
Date Record Created
20241119	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241119)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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