CVE-2024-40942

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mesh: Fix leak of mesh_preq_queue objects The hwmp code use objects of type mesh_preq_queue, added to a list in ieee80211_if_mesh, to keep track of mpath we need to resolve. If the mpath gets deleted, ex mesh interface is removed, the entries in that list will never get cleaned. Fix this by flushing all corresponding items of the preq_queue in mesh_path_flush_pending(). This should take care of KASAN reports like this: unreferenced object 0xffff00000668d800 (size 128): comm "kworker/u8:4", pid 67, jiffies 4295419552 (age 1836.444s) hex dump (first 32 bytes): 00 1f 05 09 00 00 ff ff 00 d5 68 06 00 00 ff ff ..........h..... 8e 97 ea eb 3e b8 01 00 00 00 00 00 00 00 00 00 ....>........... backtrace: [<000000007302a0b6>] __kmem_cache_alloc_node+0x1e0/0x35c [<00000000049bd418>] kmalloc_trace+0x34/0x80 [<0000000000d792bb>] mesh_queue_preq+0x44/0x2a8 [<00000000c99c3696>] mesh_nexthop_resolve+0x198/0x19c [<00000000926bf598>] ieee80211_xmit+0x1d0/0x1f4 [<00000000fc8c2284>] __ieee80211_subif_start_xmit+0x30c/0x764 [<000000005926ee38>] ieee80211_subif_start_xmit+0x9c/0x7a4 [<000000004c86e916>] dev_hard_start_xmit+0x174/0x440 [<0000000023495647>] __dev_queue_xmit+0xe24/0x111c [<00000000cfe9ca78>] batadv_send_skb_packet+0x180/0x1e4 [<000000007bacc5d5>] batadv_v_elp_periodic_work+0x2f4/0x508 [<00000000adc3cd94>] process_one_work+0x4b8/0xa1c [<00000000b36425d1>] worker_thread+0x9c/0x634 [<0000000005852dd5>] kthread+0x1bc/0x1c4 [<000000005fccd770>] ret_from_fork+0x10/0x20 unreferenced object 0xffff000009051f00 (size 128): comm "kworker/u8:4", pid 67, jiffies 4295419553 (age 1836.440s) hex dump (first 32 bytes): 90 d6 92 0d 00 00 ff ff 00 d8 68 06 00 00 ff ff ..........h..... 36 27 92 e4 02 e0 01 00 00 58 79 06 00 00 ff ff 6'.......Xy..... backtrace: [<000000007302a0b6>] __kmem_cache_alloc_node+0x1e0/0x35c [<00000000049bd418>] kmalloc_trace+0x34/0x80 [<0000000000d792bb>] mesh_queue_preq+0x44/0x2a8 [<00000000c99c3696>] mesh_nexthop_resolve+0x198/0x19c [<00000000926bf598>] ieee80211_xmit+0x1d0/0x1f4 [<00000000fc8c2284>] __ieee80211_subif_start_xmit+0x30c/0x764 [<000000005926ee38>] ieee80211_subif_start_xmit+0x9c/0x7a4 [<000000004c86e916>] dev_hard_start_xmit+0x174/0x440 [<0000000023495647>] __dev_queue_xmit+0xe24/0x111c [<00000000cfe9ca78>] batadv_send_skb_packet+0x180/0x1e4 [<000000007bacc5d5>] batadv_v_elp_periodic_work+0x2f4/0x508 [<00000000adc3cd94>] process_one_work+0x4b8/0xa1c [<00000000b36425d1>] worker_thread+0x9c/0x634 [<0000000005852dd5>] kthread+0x1bc/0x1c4 [<000000005fccd770>] ret_from_fork+0x10/0x20

• CWE-401

• https://git.kernel.org/stable/c/377dbb220edc8421b7960691876c5b3bef62f89bPatch
• https://git.kernel.org/stable/c/617dadbfb2d3e152c5753e28356d189c9d6f33c0Patch
• https://git.kernel.org/stable/c/63d5f89bb5664d60edbf8cf0df911aaae8ed96a4Patch
• https://git.kernel.org/stable/c/7518e20a189f8659b8b83969db4d33a4068fcfc3Patch
• https://git.kernel.org/stable/c/b7d7f11a291830fdf69d3301075dd0fb347ced84Patch
• https://git.kernel.org/stable/c/c4c865f971fd4a255208f57ef04d814c2ae9e0dcPatch
• https://git.kernel.org/stable/c/d81e244af521de63ad2883e17571b789c39b6549Patch
• https://git.kernel.org/stable/c/ec79670eae430b3ffb7e0a6417ad7657728b8f95Patch
• https://git.kernel.org/stable/c/377dbb220edc8421b7960691876c5b3bef62f89bPatch
• https://git.kernel.org/stable/c/617dadbfb2d3e152c5753e28356d189c9d6f33c0Patch
• https://git.kernel.org/stable/c/63d5f89bb5664d60edbf8cf0df911aaae8ed96a4Patch
• https://git.kernel.org/stable/c/7518e20a189f8659b8b83969db4d33a4068fcfc3Patch
• https://git.kernel.org/stable/c/b7d7f11a291830fdf69d3301075dd0fb347ced84Patch
• https://git.kernel.org/stable/c/c4c865f971fd4a255208f57ef04d814c2ae9e0dcPatch
• https://git.kernel.org/stable/c/d81e244af521de63ad2883e17571b789c39b6549Patch
• https://git.kernel.org/stable/c/ec79670eae430b3ffb7e0a6417ad7657728b8f95Patch
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
• https://cert-portal.siemens.com/productcert/html/ssa-265688.html
• https://cert-portal.siemens.com/productcert/html/ssa-355557.html

Published

Jul 12, 2024

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2024-40937In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-40938In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-40939In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2024-4094The Simple Share Buttons Adder WordPress plugin before 8.5.1…5.4
• CVE-2024-40940In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2024-40941In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-40943In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2024-40944In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-40945In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-40946Rejected reason: This CVE ID has been rejected or withdrawn …
• CVE-2024-40947In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-40948In the Linux kernel, the following vulnerability has been re…5.5