| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-22119: wifi: cfg80211: init wiphy_work before allocating rfkill fails |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: cfg80211: init wiphy_work before allocating rfkill fails |
| |
| syzbort reported a uninitialize wiphy_work_lock in cfg80211_dev_free. [1] |
| |
| After rfkill allocation fails, the wiphy release process will be performed, |
| which will cause cfg80211_dev_free to access the uninitialized wiphy_work |
| related data. |
| |
| Move the initialization of wiphy_work to before rfkill initialization to |
| avoid this issue. |
| |
| [1] |
| INFO: trying to register non-static key. |
| The code is fine but needs lockdep annotation, or maybe |
| you didn't initialize this object before use? |
| turning off the locking correctness validator. |
| CPU: 0 UID: 0 PID: 5935 Comm: syz-executor550 Not tainted 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0 |
| Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 |
| Call Trace: |
| <TASK> |
| __dump_stack lib/dump_stack.c:94 [inline] |
| dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 |
| assign_lock_key kernel/locking/lockdep.c:983 [inline] |
| register_lock_class+0xc39/0x1240 kernel/locking/lockdep.c:1297 |
| __lock_acquire+0x135/0x3c40 kernel/locking/lockdep.c:5103 |
| lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851 |
| __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] |
| _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 |
| cfg80211_dev_free+0x30/0x3d0 net/wireless/core.c:1196 |
| device_release+0xa1/0x240 drivers/base/core.c:2568 |
| kobject_cleanup lib/kobject.c:689 [inline] |
| kobject_release lib/kobject.c:720 [inline] |
| kref_put include/linux/kref.h:65 [inline] |
| kobject_put+0x1e4/0x5a0 lib/kobject.c:737 |
| put_device+0x1f/0x30 drivers/base/core.c:3774 |
| wiphy_free net/wireless/core.c:1224 [inline] |
| wiphy_new_nm+0x1c1f/0x2160 net/wireless/core.c:562 |
| ieee80211_alloc_hw_nm+0x1b7a/0x2260 net/mac80211/main.c:835 |
| mac80211_hwsim_new_radio+0x1d6/0x54e0 drivers/net/wireless/virtual/mac80211_hwsim.c:5185 |
| hwsim_new_radio_nl+0xb42/0x12b0 drivers/net/wireless/virtual/mac80211_hwsim.c:6242 |
| genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 |
| genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] |
| genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 |
| netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2533 |
| genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 |
| netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] |
| netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1338 |
| netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1882 |
| sock_sendmsg_nosec net/socket.c:718 [inline] |
| __sock_sendmsg net/socket.c:733 [inline] |
| ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2573 |
| ___sys_sendmsg+0x135/0x1e0 net/socket.c:2627 |
| __sys_sendmsg+0x16e/0x220 net/socket.c:2659 |
| do_syscall_x64 arch/x86/entry/common.c:52 [inline] |
| do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 |
| |
| Close: https://syzkaller.appspot.com/bug?extid=aaf0488c83d1d5f4f029 |
| |
| The Linux kernel CVE team has assigned CVE-2025-22119 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.14 with commit 72d520476a2fab6f3489e8388ab524985d6c4b90 and fixed in 6.14.2 with commit 2617f60c3613ef105b8db2d514d2cac2a1836f7d |
| Issue introduced in 6.14 with commit 72d520476a2fab6f3489e8388ab524985d6c4b90 and fixed in 6.15 with commit fc88dee89d7b63eeb17699393eb659aadf9d9b7c |
| Issue introduced in 6.1.132 with commit 0272d4af7f92997541d8bbf4c51918b93ded6ee2 |
| Issue introduced in 6.6.84 with commit 75d262ad3c36d52852d764588fcd887f0fcd9138 |
| Issue introduced in 6.12.20 with commit a5158d67bff06cb6fea31be39aeb319fd908ed8e |
| Issue introduced in 6.13.8 with commit dea22de162058216a90f2706f0d0b36f0ff309fd |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-22119 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| net/wireless/core.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/2617f60c3613ef105b8db2d514d2cac2a1836f7d |
| https://git.kernel.org/stable/c/fc88dee89d7b63eeb17699393eb659aadf9d9b7c |
