cbcvebase.
CVE-2024-53042
published 2024-11-19

CVE-2024-53042: 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…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.27%
18.2th percentile
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: 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

Affected

27 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
debianlinux-6.1< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
linuxlinux
linuxlinux>= 5.10.227 < 5.10.2295.10.229
linuxlinux>= 5.15.168 < 5.15.1715.15.171
linuxlinux>= 760852df570747e500a9632d34cbbf4faef30855 < 5edcb3fdb12c3d46a6e79eeeec27d925b80fc1685edcb3fdb12c3d46a6e79eeeec27d925b80fc168
linuxlinux>= ab6c9463b137163ba53fc050bf2c72bed2c997b8 < e2742758c9c85c84e077ede5f916479f724e11c2e2742758c9c85c84e077ede5f916479f724e11c2
linuxlinux>= db53cd3d88dc328dea2e968c9c8d3b4294a8a674 < 72c0f482e39c87317ebf67661e28c8d86c93e87072c0f482e39c87317ebf67661e28c8d86c93e870
linuxlinux>= db53cd3d88dc328dea2e968c9c8d3b4294a8a674 < 699b48fc31727792edf2cab3829586ae6ba649e2699b48fc31727792edf2cab3829586ae6ba649e2
linuxlinux>= db53cd3d88dc328dea2e968c9c8d3b4294a8a674 < 6dfaa458fe923211c766238a224e0a3c0522935c6dfaa458fe923211c766238a224e0a3c0522935c
linuxlinux>= db53cd3d88dc328dea2e968c9c8d3b4294a8a674 < ad4a3ca6a8e886f6491910a3ae5d53595e40597dad4a3ca6a8e886f6491910a3ae5d53595e40597d
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.119-16.1.119-1
linuxlinux_kernel>= 0 < 6.11.7-16.11.7-1
linuxlinux_kernel>= 0 < 6.11.7-16.11.7-1
linuxlinux_kernel>= 0 < 5.15.0-133.1445.15.0-133.144
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 5.10.227 < 5.10.2295.10.229
linuxlinux_kernel>= 5.15.168 < 5.15.1715.15.171
linuxlinux_kernel>= 5.18 < 6.1.1166.1.116
linuxlinux_kernel>= 6.2 < 6.6.606.6.60
linuxlinux_kernel>= 6.7 < 6.11.76.11.7
msrcazl3_kernel_6.6.57.1-7_on_azure_linux_3.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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