CVE-2024-50304
- Source
- https://cve.org/CVERecord?id=CVE-2024-50304
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50304.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-50304
- Downstream
- Related
- Published
- 2024-11-19T17:19:30Z
- Modified
- 2026-08-12T03:30:37Z
- Summary
- ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()
The per-netns IP tunnel hash table is protected by the RTNL mutex and ip_tunnel_find() is only called from the control path where the mutex is taken.
Add a lockdep expression to hlist_for_each_entry_rcu() in ip_tunnel_find() in order to validate that the mutex is held and to silence the suspicious RCU usage warning [1].
[1] WARNING: suspicious RCU usage 6.12.0-rc3-custom-gd95d9a31aceb #139 Not tainted
net/ipv4/ip_tunnel.c:221 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/362: #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60
stack backtrace: CPU: 12 UID: 0 PID: 362 Comm: ip Not tainted 6.12.0-rc3-custom-gd95d9a31aceb #139 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Call Trace: dump_stack_lvl+0xba/0x110 lockdep_rcu_suspicious.cold+0x4f/0xd6 ip_tunnel_find+0x435/0x4d0 ip_tunnel_newlink+0x517/0x7a0 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/2024/50xxx/CVE-2024-50304.json" }- References
-
- https://git.kernel.org/stable/c/31bd7378c6fe100a8af0e996ea0b5dafd3579df6
- https://git.kernel.org/stable/c/6ac5dfa575136da8dd8a9e7c1437c41f3a593993
- https://git.kernel.org/stable/c/90e0569dd3d32f4f4d2ca691d3fa5a8a14a13c12
- https://git.kernel.org/stable/c/ce11424026cbf87d5861b09e5e33565ff7f2ec8d
- https://git.kernel.org/stable/c/e0500e4373cd3d5eace1f1712444ab830b82c114
- https://git.kernel.org/stable/c/f20fe2cfe06ca1b008b09da4f2b4e0c5547ccef6
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50304.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-50304
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introducedc54419321455631079c7d6e60bc732dd0c5914c5Fixed31bd7378c6fe100a8af0e996ea0b5dafd3579df6Fixed6ac5dfa575136da8dd8a9e7c1437c41f3a593993Fixedce11424026cbf87d5861b09e5e33565ff7f2ec8dFixede0500e4373cd3d5eace1f1712444ab830b82c114Fixedf20fe2cfe06ca1b008b09da4f2b4e0c5547ccef6Fixed90e0569dd3d32f4f4d2ca691d3fa5a8a14a13c12
Linux / Kernel
Package
- Name
- Kernel