CVE-2024-53042

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Source
https://cve.org/CVERecord?id=CVE-2024-53042
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53042.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-53042
Downstream
Related
Published
2024-11-19T17:19:30Z
Modified
2026-05-18T05:59:02Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()
Details

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

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53042.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ab6c9463b137163ba53fc050bf2c72bed2c997b8
Fixed
e2742758c9c85c84e077ede5f916479f724e11c2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
760852df570747e500a9632d34cbbf4faef30855
Fixed
5edcb3fdb12c3d46a6e79eeeec27d925b80fc168
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
db53cd3d88dc328dea2e968c9c8d3b4294a8a674
Fixed
72c0f482e39c87317ebf67661e28c8d86c93e870
Fixed
699b48fc31727792edf2cab3829586ae6ba649e2
Fixed
6dfaa458fe923211c766238a224e0a3c0522935c
Fixed
ad4a3ca6a8e886f6491910a3ae5d53595e40597d

Affected versions

v5.*
v5.10.227
v5.10.228
v5.15.168
v5.15.169
v5.15.170

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53042.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.10.229
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.171
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.116
Type
ECOSYSTEM
Events
Introduced
5.18.0
Fixed
6.6.60
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.11.7

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53042.json"