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CVE-2024-26896 (GCVE-0-2024-26896)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2026-05-11 20:06
VLAI
Title
wifi: wfx: fix memory leak when starting AP
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: fix memory leak when starting AP Kmemleak reported this error: unreferenced object 0xd73d1180 (size 184): comm "wpa_supplicant", pid 1559, jiffies 13006305 (age 964.245s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00 ................ backtrace: [<5ca11420>] kmem_cache_alloc+0x20c/0x5ac [<127bdd74>] __alloc_skb+0x144/0x170 [<fb8a5e38>] __netdev_alloc_skb+0x50/0x180 [<0f9fa1d5>] __ieee80211_beacon_get+0x290/0x4d4 [mac80211] [<7accd02d>] ieee80211_beacon_get_tim+0x54/0x18c [mac80211] [<41e25cc3>] wfx_start_ap+0xc8/0x234 [wfx] [<93a70356>] ieee80211_start_ap+0x404/0x6b4 [mac80211] [<a4a661cd>] nl80211_start_ap+0x76c/0x9e0 [cfg80211] [<47bd8b68>] genl_rcv_msg+0x198/0x378 [<453ef796>] netlink_rcv_skb+0xd0/0x130 [<6b7c977a>] genl_rcv+0x34/0x44 [<66b2d04d>] netlink_unicast+0x1b4/0x258 [<f965b9b6>] netlink_sendmsg+0x1e8/0x428 [<aadb8231>] ____sys_sendmsg+0x1e0/0x274 [<d2b5212d>] ___sys_sendmsg+0x80/0xb4 [<69954f45>] __sys_sendmsg+0x64/0xa8 unreferenced object 0xce087000 (size 1024): comm "wpa_supplicant", pid 1559, jiffies 13006305 (age 964.246s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace: [<9a993714>] __kmalloc_track_caller+0x230/0x600 [<f83ea192>] kmalloc_reserve.constprop.0+0x30/0x74 [<a2c61343>] __alloc_skb+0xa0/0x170 [<fb8a5e38>] __netdev_alloc_skb+0x50/0x180 [<0f9fa1d5>] __ieee80211_beacon_get+0x290/0x4d4 [mac80211] [<7accd02d>] ieee80211_beacon_get_tim+0x54/0x18c [mac80211] [<41e25cc3>] wfx_start_ap+0xc8/0x234 [wfx] [<93a70356>] ieee80211_start_ap+0x404/0x6b4 [mac80211] [<a4a661cd>] nl80211_start_ap+0x76c/0x9e0 [cfg80211] [<47bd8b68>] genl_rcv_msg+0x198/0x378 [<453ef796>] netlink_rcv_skb+0xd0/0x130 [<6b7c977a>] genl_rcv+0x34/0x44 [<66b2d04d>] netlink_unicast+0x1b4/0x258 [<f965b9b6>] netlink_sendmsg+0x1e8/0x428 [<aadb8231>] ____sys_sendmsg+0x1e0/0x274 [<d2b5212d>] ___sys_sendmsg+0x80/0xb4 However, since the kernel is build optimized, it seems the stack is not accurate. It appears the issue is related to wfx_set_mfp_ap(). The issue is obvious in this function: memory allocated by ieee80211_beacon_get() is never released. Fixing this leak makes kmemleak happy.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-13 16:49 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 268bceec1684932e194ae87877dcc73f534d921c , < a1f57a0127b89a6b6620514564aa7eaec16d9af3 (git)
Affected: 268bceec1684932e194ae87877dcc73f534d921c , < 3a71ec74e5e3478d202a1874f085ca3ef40be49b (git)
Affected: 268bceec1684932e194ae87877dcc73f534d921c , < 12f00a367b2b62756e0396f14b54c2c15524e1c3 (git)
Affected: 268bceec1684932e194ae87877dcc73f534d921c , < dadbb5d29d6c5f571a50272fce8c1505a9559487 (git)
Affected: 268bceec1684932e194ae87877dcc73f534d921c , < b8cfb7c819dd39965136a66fe3a7fde688d976fc (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 6.1.83 , ≤ 6.1.* (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
linux linux_kernel Affected: 5.10
    cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: 268bceec1684 , < a1f57a0127b8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: fix memory leak when starting AP\n\nKmemleak reported this error:\n\n    unreferenced object 0xd73d1180 (size 184):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.245s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00  ................\n      backtrace:\n        [\u003c5ca11420\u003e] kmem_cache_alloc+0x20c/0x5ac\n        [\u003c127bdd74\u003e] __alloc_skb+0x144/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n        [\u003c69954f45\u003e] __sys_sendmsg+0x64/0xa8\n    unreferenced object 0xce087000 (size 1024):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.246s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............\n      backtrace:\n        [\u003c9a993714\u003e] __kmalloc_track_caller+0x230/0x600\n        [\u003cf83ea192\u003e] kmalloc_reserve.constprop.0+0x30/0x74\n        [\u003ca2c61343\u003e] __alloc_skb+0xa0/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n\nHowever, since the kernel is build optimized, it seems the stack is not\naccurate. It appears the issue is related to wfx_set_mfp_ap(). The issue\nis obvious in this function: memory allocated by ieee80211_beacon_get()\nis never released. Fixing this leak makes kmemleak happy."
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/a1f57a0127b89a6b6620514564aa7eaec16d9af3"
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          "url": "https://git.kernel.org/stable/c/3a71ec74e5e3478d202a1874f085ca3ef40be49b"
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      "title": "wifi: wfx: fix memory leak when starting AP",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26896",
    "datePublished": "2024-04-17T10:27:47.214Z",
    "dateReserved": "2024-02-19T14:20:24.186Z",
    "dateUpdated": "2026-05-11T20:06:31.074Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-26896",
      "date": "2026-09-18",
      "epss": "0.00225",
      "percentile": "0.13484"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: fix memory leak when starting AP\n\nKmemleak reported this error:\n\n    unreferenced object 0xd73d1180 (size 184):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.245s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00  ................\n      backtrace:\n        [\u003c5ca11420\u003e] kmem_cache_alloc+0x20c/0x5ac\n        [\u003c127bdd74\u003e] __alloc_skb+0x144/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n        [\u003c69954f45\u003e] __sys_sendmsg+0x64/0xa8\n    unreferenced object 0xce087000 (size 1024):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.246s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............\n      backtrace:\n        [\u003c9a993714\u003e] __kmalloc_track_caller+0x230/0x600\n        [\u003cf83ea192\u003e] kmalloc_reserve.constprop.0+0x30/0x74\n        [\u003ca2c61343\u003e] __alloc_skb+0xa0/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n\nHowever, since the kernel is build optimized, it seems the stack is not\naccurate. It appears the issue is related to wfx_set_mfp_ap(). The issue\nis obvious in this function: memory allocated by ieee80211_beacon_get()\nis never released. Fixing this leak makes kmemleak happy."
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wifi: wfx: corrige la p\u00e9rdida de memoria al iniciar AP Kmemleak inform\u00f3 este error: objeto sin referencia 0xd73d1180 (tama\u00f1o 184): comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (edad 964.245 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00 ................ rastreo inverso: [\u0026lt;5ca11420\u0026gt;] kmem_cache_alloc+0x20c/0x5ac [\u0026lt;127bdd74\u0026gt;] __alloc_skb+0x144/0x170 [] __netdev_alloc_skb +0x50/0x180 [\u0026lt;0f9fa1d5\u0026gt;] __ieee80211_beacon_get+0x290/0x4d4 [mac80211] [\u0026lt;7accd02d\u0026gt;] ieee80211_beacon_get_tim+0x54/0x18c [mac80211] [\u0026lt;41e25cc3\u0026gt;] 8/0x234 [wfx] [\u0026lt;93a70356\u0026gt;] ieee80211_start_ap+ 0x404/0x6b4 [mac80211] [] nl80211_start_ap+0x76c/0x9e0 [cfg80211] [\u0026lt;47bd8b68\u0026gt;] genl_rcv_msg+0x198/0x378 [\u0026lt;453ef796\u0026gt;] 130 [\u0026lt;6b7c977a\u0026gt;] genl_rcv+0x34/0x44 [ \u0026lt;66b2d04d\u0026gt;] netlink_unicast+0x1b4/0x258 [] netlink_sendmsg+0x1e8/0x428 [] ____sys_sendmsg+0x1e0/0x274 [] b4 [\u0026lt;69954f45\u0026gt;] __sys_sendmsg+0x64/0xa8 sin referencia Objeto 0xCE087000 (tama\u00f1o 1024): Comm \"WPA_Supplicant\", PID 1559, Jiffies 13006305 (Edad 964.246s) Volcado hexagonal (Primero 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... ............ 10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ retroceso: [\u0026lt;9a993714\u0026gt; ] __kmalloc_track_caller+0x230/0x600 [] kmalloc_reserve.constprop.0+0x30/0x74 [] __alloc_skb+0xa0/0x170 [] __netdev_alloc_skb+0x50/0x180 9fa1d5\u0026gt;] __ieee80211_beacon_get+0x290/0x4d4 [mac80211] [\u0026lt;7accd02d\u0026gt;] ieee80211_beacon_get_tim+0x54/0x18c [mac80211] [\u0026lt;41e25cc3\u0026gt;] wfx_start_ap+0xc8/0x234 [wfx] [\u0026lt;93a70356\u0026gt;] ieee80211_start_ap+0x404/0x6b4 [ mac80211] [] nl80211_start_ap+0x76c /0x9e0 [cfg80211] [\u0026lt;47bd8b68\u0026gt;] genl_rcv_msg+0x198/0x378 [\u0026lt;453ef796\u0026gt;] netlink_rcv_skb+0xd0/0x130 [\u0026lt;6b7c977a\u0026gt;] genl_rcv+0x34/0x44 [\u0026lt;66b2d04d\u0026gt;] x1b4/0x258 [] netlink_sendmsg+0x1e8/0x428 [] ____sys_sendmsg+0x1e0/0x274 [] ___sys_sendmsg+0x80/0xb4 Sin embargo, dado que el kernel est\u00e1 optimizado, parece que la pila no es precisa. Parece que el problema est\u00e1 relacionado con wfx_set_mfp_ap(). El problema es obvio en esta funci\u00f3n: la memoria asignada por ieee80211_beacon_get() nunca se libera. Arreglar esta fuga hace feliz a kmemleak."
        }
      ],
      "id": "CVE-2024-26896",
      "lastModified": "2024-11-21T09:03:19.633",
      "published": "2024-04-17T11:15:10.727",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/12f00a367b2b62756e0396f14b54c2c15524e1c3"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/3a71ec74e5e3478d202a1874f085ca3ef40be49b"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/a1f57a0127b89a6b6620514564aa7eaec16d9af3"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/b8cfb7c819dd39965136a66fe3a7fde688d976fc"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/dadbb5d29d6c5f571a50272fce8c1505a9559487"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/12f00a367b2b62756e0396f14b54c2c15524e1c3"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/3a71ec74e5e3478d202a1874f085ca3ef40be49b"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/a1f57a0127b89a6b6620514564aa7eaec16d9af3"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/b8cfb7c819dd39965136a66fe3a7fde688d976fc"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/dadbb5d29d6c5f571a50272fce8c1505a9559487"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-125"
            }
          ],
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ]
    },
    "microsoft_vex": {
      "current_release_date": "2026-03-31T15:06:53.000Z",
      "cve": "CVE-2024-26896",
      "id": "msrc_CVE-2024-26896",
      "initial_release_date": "2024-04-02T07:00:00.000Z",
      "product_status:under_investigation": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "wifi: wfx: fix memory leak when starting AP",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-26896.json",
      "version": "3"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/silabs/wfx/sta.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "a1f57a0127b89a6b6620514564aa7eaec16d9af3",
                    "status": "affected",
                    "version": "268bceec1684932e194ae87877dcc73f534d921c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3a71ec74e5e3478d202a1874f085ca3ef40be49b",
                    "status": "affected",
                    "version": "268bceec1684932e194ae87877dcc73f534d921c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "12f00a367b2b62756e0396f14b54c2c15524e1c3",
                    "status": "affected",
                    "version": "268bceec1684932e194ae87877dcc73f534d921c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "dadbb5d29d6c5f571a50272fce8c1505a9559487",
                    "status": "affected",
                    "version": "268bceec1684932e194ae87877dcc73f534d921c",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b8cfb7c819dd39965136a66fe3a7fde688d976fc",
                    "status": "affected",
                    "version": "268bceec1684932e194ae87877dcc73f534d921c",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/silabs/wfx/sta.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.10"
                  },
                  {
                    "lessThan": "5.10",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.83",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.23",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.7.*",
                    "status": "unaffected",
                    "version": "6.7.11",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.8.*",
                    "status": "unaffected",
                    "version": "6.8.2",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.9",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          },
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.10"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "a1f57a0127b8",
                    "status": "affected",
                    "version": "268bceec1684",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E4D76A9A-5B9B-4BBE-AF0B-2D358C8DDB1A",
                    "versionEndExcluding": "6.1.83",
                    "versionStartIncluding": "5.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E00814DC-0BA7-431A-9926-80FEB4A96C68",
                    "versionEndExcluding": "6.6.23",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9B95D3A6-E162-47D5-ABFC-F3FA74FA7CFD",
                    "versionEndExcluding": "6.7.11",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "543A75FF-25B8-4046-A514-1EA8EDD87AB1",
                    "versionEndExcluding": "6.8.2",
                    "versionStartIncluding": "6.8",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: fix memory leak when starting AP\n\nKmemleak reported this error:\n\n    unreferenced object 0xd73d1180 (size 184):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.245s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00  ................\n      backtrace:\n        [\u003c5ca11420\u003e] kmem_cache_alloc+0x20c/0x5ac\n        [\u003c127bdd74\u003e] __alloc_skb+0x144/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n        [\u003c69954f45\u003e] __sys_sendmsg+0x64/0xa8\n    unreferenced object 0xce087000 (size 1024):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.246s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............\n      backtrace:\n        [\u003c9a993714\u003e] __kmalloc_track_caller+0x230/0x600\n        [\u003cf83ea192\u003e] kmalloc_reserve.constprop.0+0x30/0x74\n        [\u003ca2c61343\u003e] __alloc_skb+0xa0/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n\nHowever, since the kernel is build optimized, it seems the stack is not\naccurate. It appears the issue is related to wfx_set_mfp_ap(). The issue\nis obvious in this function: memory allocated by ieee80211_beacon_get()\nis never released. Fixing this leak makes kmemleak happy."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wifi: wfx: corrige la p\u00e9rdida de memoria al iniciar AP Kmemleak inform\u00f3 este error: objeto sin referencia 0xd73d1180 (tama\u00f1o 184): comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (edad 964.245 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00 ................ rastreo inverso: [\u0026lt;5ca11420\u0026gt;] kmem_cache_alloc+0x20c/0x5ac [\u0026lt;127bdd74\u0026gt;] __alloc_skb+0x144/0x170 [] __netdev_alloc_skb +0x50/0x180 [\u0026lt;0f9fa1d5\u0026gt;] __ieee80211_beacon_get+0x290/0x4d4 [mac80211] [\u0026lt;7accd02d\u0026gt;] ieee80211_beacon_get_tim+0x54/0x18c [mac80211] [\u0026lt;41e25cc3\u0026gt;] 8/0x234 [wfx] [\u0026lt;93a70356\u0026gt;] ieee80211_start_ap+ 0x404/0x6b4 [mac80211] [] nl80211_start_ap+0x76c/0x9e0 [cfg80211] [\u0026lt;47bd8b68\u0026gt;] genl_rcv_msg+0x198/0x378 [\u0026lt;453ef796\u0026gt;] 130 [\u0026lt;6b7c977a\u0026gt;] genl_rcv+0x34/0x44 [ \u0026lt;66b2d04d\u0026gt;] netlink_unicast+0x1b4/0x258 [] netlink_sendmsg+0x1e8/0x428 [] ____sys_sendmsg+0x1e0/0x274 [] b4 [\u0026lt;69954f45\u0026gt;] __sys_sendmsg+0x64/0xa8 sin referencia Objeto 0xCE087000 (tama\u00f1o 1024): Comm \"WPA_Supplicant\", PID 1559, Jiffies 13006305 (Edad 964.246s) Volcado hexagonal (Primero 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... ............ 10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ retroceso: [\u0026lt;9a993714\u0026gt; ] __kmalloc_track_caller+0x230/0x600 [] kmalloc_reserve.constprop.0+0x30/0x74 [] __alloc_skb+0xa0/0x170 [] __netdev_alloc_skb+0x50/0x180 9fa1d5\u0026gt;] __ieee80211_beacon_get+0x290/0x4d4 [mac80211] [\u0026lt;7accd02d\u0026gt;] ieee80211_beacon_get_tim+0x54/0x18c [mac80211] [\u0026lt;41e25cc3\u0026gt;] wfx_start_ap+0xc8/0x234 [wfx] [\u0026lt;93a70356\u0026gt;] ieee80211_start_ap+0x404/0x6b4 [ mac80211] [] nl80211_start_ap+0x76c /0x9e0 [cfg80211] [\u0026lt;47bd8b68\u0026gt;] genl_rcv_msg+0x198/0x378 [\u0026lt;453ef796\u0026gt;] netlink_rcv_skb+0xd0/0x130 [\u0026lt;6b7c977a\u0026gt;] genl_rcv+0x34/0x44 [\u0026lt;66b2d04d\u0026gt;] x1b4/0x258 [] netlink_sendmsg+0x1e8/0x428 [] ____sys_sendmsg+0x1e0/0x274 [] ___sys_sendmsg+0x80/0xb4 Sin embargo, dado que el kernel est\u00e1 optimizado, parece que la pila no es precisa. Parece que el problema est\u00e1 relacionado con wfx_set_mfp_ap(). El problema es obvio en esta funci\u00f3n: la memoria asignada por ieee80211_beacon_get() nunca se libera. Arreglar esta fuga hace feliz a kmemleak."
          }
        ],
        "id": "CVE-2024-26896",
        "lastModified": "2026-06-17T07:18:37.997",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-26896",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-13T16:49:12.892582Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-04-17T11:15:10.727",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/12f00a367b2b62756e0396f14b54c2c15524e1c3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3a71ec74e5e3478d202a1874f085ca3ef40be49b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a1f57a0127b89a6b6620514564aa7eaec16d9af3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b8cfb7c819dd39965136a66fe3a7fde688d976fc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/dadbb5d29d6c5f571a50272fce8c1505a9559487"
          },
          {
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: fix memory leak when starting AP\n\nKmemleak reported this error:\n\n    unreferenced object 0xd73d1180 (size 184):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.245s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        00 00 00 00 00 00 00 00 1e 00 01 00 00 00 00 00  ................\n      backtrace:\n        [\u003c5ca11420\u003e] kmem_cache_alloc+0x20c/0x5ac\n        [\u003c127bdd74\u003e] __alloc_skb+0x144/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n        [\u003c69954f45\u003e] __sys_sendmsg+0x64/0xa8\n    unreferenced object 0xce087000 (size 1024):\n      comm \"wpa_supplicant\", pid 1559, jiffies 13006305 (age 964.246s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n        10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............\n      backtrace:\n        [\u003c9a993714\u003e] __kmalloc_track_caller+0x230/0x600\n        [\u003cf83ea192\u003e] kmalloc_reserve.constprop.0+0x30/0x74\n        [\u003ca2c61343\u003e] __alloc_skb+0xa0/0x170\n        [\u003cfb8a5e38\u003e] __netdev_alloc_skb+0x50/0x180\n        [\u003c0f9fa1d5\u003e] __ieee80211_beacon_get+0x290/0x4d4 [mac80211]\n        [\u003c7accd02d\u003e] ieee80211_beacon_get_tim+0x54/0x18c [mac80211]\n        [\u003c41e25cc3\u003e] wfx_start_ap+0xc8/0x234 [wfx]\n        [\u003c93a70356\u003e] ieee80211_start_ap+0x404/0x6b4 [mac80211]\n        [\u003ca4a661cd\u003e] nl80211_start_ap+0x76c/0x9e0 [cfg80211]\n        [\u003c47bd8b68\u003e] genl_rcv_msg+0x198/0x378\n        [\u003c453ef796\u003e] netlink_rcv_skb+0xd0/0x130\n        [\u003c6b7c977a\u003e] genl_rcv+0x34/0x44\n        [\u003c66b2d04d\u003e] netlink_unicast+0x1b4/0x258\n        [\u003cf965b9b6\u003e] netlink_sendmsg+0x1e8/0x428\n        [\u003caadb8231\u003e] ____sys_sendmsg+0x1e0/0x274\n        [\u003cd2b5212d\u003e] ___sys_sendmsg+0x80/0xb4\n\nHowever, since the kernel is build optimized, it seems the stack is not\naccurate. It appears the issue is related to wfx_set_mfp_ap(). The issue\nis obvious in this function: memory allocated by ieee80211_beacon_get()\nis never released. Fixing this leak makes kmemleak happy."
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.