fkie_nvd - fkie_cve-2022-50408

fkie_cve-2022-50408

Vulnerability from fkie_nvd

Published

2025-09-18 16:15

Modified

2025-09-19 16:00

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() > ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb); may be schedule, and then complete before the line > ndev->stats.tx_bytes += skb->len; [ 46.912801] ================================================================== [ 46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac] [ 46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328 [ 46.935991] [ 46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G O 5.4.199-[REDACTED] #1 [ 46.947255] Hardware name: [REDACTED] [ 46.954568] Call trace: [ 46.957037] dump_backtrace+0x0/0x2b8 [ 46.960719] show_stack+0x24/0x30 [ 46.964052] dump_stack+0x128/0x194 [ 46.967557] print_address_description.isra.0+0x64/0x380 [ 46.972877] __kasan_report+0x1d4/0x240 [ 46.976723] kasan_report+0xc/0x18 [ 46.980138] __asan_report_load4_noabort+0x18/0x20 [ 46.985027] brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac] [ 46.990613] dev_hard_start_xmit+0x1bc/0xda0 [ 46.994894] sch_direct_xmit+0x198/0xd08 [ 46.998827] __qdisc_run+0x37c/0x1dc0 [ 47.002500] __dev_queue_xmit+0x1528/0x21f8 [ 47.006692] dev_queue_xmit+0x24/0x30 [ 47.010366] neigh_resolve_output+0x37c/0x678 [ 47.014734] ip_finish_output2+0x598/0x2458 [ 47.018927] __ip_finish_output+0x300/0x730 [ 47.023118] ip_output+0x2e0/0x430 [ 47.026530] ip_local_out+0x90/0x140 [ 47.030117] igmpv3_sendpack+0x14c/0x228 [ 47.034049] igmpv3_send_cr+0x384/0x6b8 [ 47.037895] igmp_ifc_timer_expire+0x4c/0x118 [ 47.042262] call_timer_fn+0x1cc/0xbe8 [ 47.046021] __run_timers+0x4d8/0xb28 [ 47.049693] run_timer_softirq+0x24/0x40 [ 47.053626] __do_softirq+0x2c0/0x117c [ 47.057387] irq_exit+0x2dc/0x388 [ 47.060715] __handle_domain_irq+0xb4/0x158 [ 47.064908] gic_handle_irq+0x58/0xb0 [ 47.068581] el0_irq_naked+0x50/0x5c [ 47.072162] [ 47.073665] Allocated by task 328: [ 47.077083] save_stack+0x24/0xb0 [ 47.080410] __kasan_kmalloc.isra.0+0xc0/0xe0 [ 47.084776] kasan_slab_alloc+0x14/0x20 [ 47.088622] kmem_cache_alloc+0x15c/0x468 [ 47.092643] __alloc_skb+0xa4/0x498 [ 47.096142] igmpv3_newpack+0x158/0xd78 [ 47.099987] add_grhead+0x210/0x288 [ 47.103485] add_grec+0x6b0/0xb70 [ 47.106811] igmpv3_send_cr+0x2e0/0x6b8 [ 47.110657] igmp_ifc_timer_expire+0x4c/0x118 [ 47.115027] call_timer_fn+0x1cc/0xbe8 [ 47.118785] __run_timers+0x4d8/0xb28 [ 47.122457] run_timer_softirq+0x24/0x40 [ 47.126389] __do_softirq+0x2c0/0x117c [ 47.130142] [ 47.131643] Freed by task 180: [ 47.134712] save_stack+0x24/0xb0 [ 47.138041] __kasan_slab_free+0x108/0x180 [ 47.142146] kasan_slab_free+0x10/0x18 [ 47.145904] slab_free_freelist_hook+0xa4/0x1b0 [ 47.150444] kmem_cache_free+0x8c/0x528 [ 47.154292] kfree_skbmem+0x94/0x108 [ 47.157880] consume_skb+0x10c/0x5a8 [ 47.161466] __dev_kfree_skb_any+0x88/0xa0 [ 47.165598] brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil] [ 47.171023] brcmf_txfinalize+0xec/0x190 [brcmfmac] [ 47.176016] brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac] [ 47.182056] brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac] [ 47.187568] brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac] [ 47.192529] brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac] [ 47.197859] process_one_work+0x7fc/0x1a80 [ 47.201965] worker_thread+0x31c/0xc40 [ 47.205726] kthread+0x2d8/0x370 [ 47.208967] ret_from_fork+0x10/0x18 [ 47.212546] [ 47.214051] The buggy address belongs to the object at ffffff803f588280 [ 47.214051] which belongs to the cache skbuff_head_cache of size 208 [ 47.227086] The buggy address is located 104 bytes inside of [ 47.227086] 208-byte region [ffffff803f588280, ffffff803f588350) [ 47.238814] The buggy address belongs to the page: [ 47.243618] page:ffffffff00dd6200 refcount:1 mapcou ---truncated---

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()\n\n\u003e ret = brcmf_proto_tx_queue_data(drvr, ifp-\u003eifidx, skb);\n\nmay be schedule, and then complete before the line\n\n\u003e ndev-\u003estats.tx_bytes += skb-\u003elen;\n\n[   46.912801] ==================================================================\n[   46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]\n[   46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328\n[   46.935991]\n[   46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G           O      5.4.199-[REDACTED] #1\n[   46.947255] Hardware name: [REDACTED]\n[   46.954568] Call trace:\n[   46.957037]  dump_backtrace+0x0/0x2b8\n[   46.960719]  show_stack+0x24/0x30\n[   46.964052]  dump_stack+0x128/0x194\n[   46.967557]  print_address_description.isra.0+0x64/0x380\n[   46.972877]  __kasan_report+0x1d4/0x240\n[   46.976723]  kasan_report+0xc/0x18\n[   46.980138]  __asan_report_load4_noabort+0x18/0x20\n[   46.985027]  brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]\n[   46.990613]  dev_hard_start_xmit+0x1bc/0xda0\n[   46.994894]  sch_direct_xmit+0x198/0xd08\n[   46.998827]  __qdisc_run+0x37c/0x1dc0\n[   47.002500]  __dev_queue_xmit+0x1528/0x21f8\n[   47.006692]  dev_queue_xmit+0x24/0x30\n[   47.010366]  neigh_resolve_output+0x37c/0x678\n[   47.014734]  ip_finish_output2+0x598/0x2458\n[   47.018927]  __ip_finish_output+0x300/0x730\n[   47.023118]  ip_output+0x2e0/0x430\n[   47.026530]  ip_local_out+0x90/0x140\n[   47.030117]  igmpv3_sendpack+0x14c/0x228\n[   47.034049]  igmpv3_send_cr+0x384/0x6b8\n[   47.037895]  igmp_ifc_timer_expire+0x4c/0x118\n[   47.042262]  call_timer_fn+0x1cc/0xbe8\n[   47.046021]  __run_timers+0x4d8/0xb28\n[   47.049693]  run_timer_softirq+0x24/0x40\n[   47.053626]  __do_softirq+0x2c0/0x117c\n[   47.057387]  irq_exit+0x2dc/0x388\n[   47.060715]  __handle_domain_irq+0xb4/0x158\n[   47.064908]  gic_handle_irq+0x58/0xb0\n[   47.068581]  el0_irq_naked+0x50/0x5c\n[   47.072162]\n[   47.073665] Allocated by task 328:\n[   47.077083]  save_stack+0x24/0xb0\n[   47.080410]  __kasan_kmalloc.isra.0+0xc0/0xe0\n[   47.084776]  kasan_slab_alloc+0x14/0x20\n[   47.088622]  kmem_cache_alloc+0x15c/0x468\n[   47.092643]  __alloc_skb+0xa4/0x498\n[   47.096142]  igmpv3_newpack+0x158/0xd78\n[   47.099987]  add_grhead+0x210/0x288\n[   47.103485]  add_grec+0x6b0/0xb70\n[   47.106811]  igmpv3_send_cr+0x2e0/0x6b8\n[   47.110657]  igmp_ifc_timer_expire+0x4c/0x118\n[   47.115027]  call_timer_fn+0x1cc/0xbe8\n[   47.118785]  __run_timers+0x4d8/0xb28\n[   47.122457]  run_timer_softirq+0x24/0x40\n[   47.126389]  __do_softirq+0x2c0/0x117c\n[   47.130142]\n[   47.131643] Freed by task 180:\n[   47.134712]  save_stack+0x24/0xb0\n[   47.138041]  __kasan_slab_free+0x108/0x180\n[   47.142146]  kasan_slab_free+0x10/0x18\n[   47.145904]  slab_free_freelist_hook+0xa4/0x1b0\n[   47.150444]  kmem_cache_free+0x8c/0x528\n[   47.154292]  kfree_skbmem+0x94/0x108\n[   47.157880]  consume_skb+0x10c/0x5a8\n[   47.161466]  __dev_kfree_skb_any+0x88/0xa0\n[   47.165598]  brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil]\n[   47.171023]  brcmf_txfinalize+0xec/0x190 [brcmfmac]\n[   47.176016]  brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac]\n[   47.182056]  brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac]\n[   47.187568]  brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac]\n[   47.192529]  brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac]\n[   47.197859]  process_one_work+0x7fc/0x1a80\n[   47.201965]  worker_thread+0x31c/0xc40\n[   47.205726]  kthread+0x2d8/0x370\n[   47.208967]  ret_from_fork+0x10/0x18\n[   47.212546]\n[   47.214051] The buggy address belongs to the object at ffffff803f588280\n[   47.214051]  which belongs to the cache skbuff_head_cache of size 208\n[   47.227086] The buggy address is located 104 bytes inside of\n[   47.227086]  208-byte region [ffffff803f588280, ffffff803f588350)\n[   47.238814] The buggy address belongs to the page:\n[   47.243618] page:ffffffff00dd6200 refcount:1 mapcou\n---truncated---"
    }
  ],
  "id": "CVE-2022-50408",
  "lastModified": "2025-09-19T16:00:27.847",
  "metrics": {},
  "published": "2025-09-18T16:15:44.003",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2022-50408 (GCVE-0-2022-50408)

Vulnerability from cvelistv5

Published

2025-09-18 16:03

Modified

2025-09-18 16:03

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560
	https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df
	https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2
	https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed
	https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02
	https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e
	https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96
	https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478

Impacted products

Vendor

Product

Version

▼

Linux

Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Linux

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1613a7b24f1a7467cb727ba3ec77c9a808383560",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "d79f4d903e14dde822c60b5fd3bedc5a289d25df",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "49c742afd60f552fce7799287080db02bffe1db2",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "e01d96494a9de0f48b1167f0494f6d929fa773ed",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "232d59eca07f6ea27307022a33d226aff373bd02",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "27574a3f421c3a1694d0207f37c6bbf23d66978e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "c369836cff98d3877f98c98e15c0151462812d96",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "3f42faf6db431e04bf942d2ebe3ae88975723478",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.296",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.262",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.220",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.296",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.262",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.220",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.150",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()\n\n\u003e ret = brcmf_proto_tx_queue_data(drvr, ifp-\u003eifidx, skb);\n\nmay be schedule, and then complete before the line\n\n\u003e ndev-\u003estats.tx_bytes += skb-\u003elen;\n\n[   46.912801] ==================================================================\n[   46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]\n[   46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328\n[   46.935991]\n[   46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G           O      5.4.199-[REDACTED] #1\n[   46.947255] Hardware name: [REDACTED]\n[   46.954568] Call trace:\n[   46.957037]  dump_backtrace+0x0/0x2b8\n[   46.960719]  show_stack+0x24/0x30\n[   46.964052]  dump_stack+0x128/0x194\n[   46.967557]  print_address_description.isra.0+0x64/0x380\n[   46.972877]  __kasan_report+0x1d4/0x240\n[   46.976723]  kasan_report+0xc/0x18\n[   46.980138]  __asan_report_load4_noabort+0x18/0x20\n[   46.985027]  brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]\n[   46.990613]  dev_hard_start_xmit+0x1bc/0xda0\n[   46.994894]  sch_direct_xmit+0x198/0xd08\n[   46.998827]  __qdisc_run+0x37c/0x1dc0\n[   47.002500]  __dev_queue_xmit+0x1528/0x21f8\n[   47.006692]  dev_queue_xmit+0x24/0x30\n[   47.010366]  neigh_resolve_output+0x37c/0x678\n[   47.014734]  ip_finish_output2+0x598/0x2458\n[   47.018927]  __ip_finish_output+0x300/0x730\n[   47.023118]  ip_output+0x2e0/0x430\n[   47.026530]  ip_local_out+0x90/0x140\n[   47.030117]  igmpv3_sendpack+0x14c/0x228\n[   47.034049]  igmpv3_send_cr+0x384/0x6b8\n[   47.037895]  igmp_ifc_timer_expire+0x4c/0x118\n[   47.042262]  call_timer_fn+0x1cc/0xbe8\n[   47.046021]  __run_timers+0x4d8/0xb28\n[   47.049693]  run_timer_softirq+0x24/0x40\n[   47.053626]  __do_softirq+0x2c0/0x117c\n[   47.057387]  irq_exit+0x2dc/0x388\n[   47.060715]  __handle_domain_irq+0xb4/0x158\n[   47.064908]  gic_handle_irq+0x58/0xb0\n[   47.068581]  el0_irq_naked+0x50/0x5c\n[   47.072162]\n[   47.073665] Allocated by task 328:\n[   47.077083]  save_stack+0x24/0xb0\n[   47.080410]  __kasan_kmalloc.isra.0+0xc0/0xe0\n[   47.084776]  kasan_slab_alloc+0x14/0x20\n[   47.088622]  kmem_cache_alloc+0x15c/0x468\n[   47.092643]  __alloc_skb+0xa4/0x498\n[   47.096142]  igmpv3_newpack+0x158/0xd78\n[   47.099987]  add_grhead+0x210/0x288\n[   47.103485]  add_grec+0x6b0/0xb70\n[   47.106811]  igmpv3_send_cr+0x2e0/0x6b8\n[   47.110657]  igmp_ifc_timer_expire+0x4c/0x118\n[   47.115027]  call_timer_fn+0x1cc/0xbe8\n[   47.118785]  __run_timers+0x4d8/0xb28\n[   47.122457]  run_timer_softirq+0x24/0x40\n[   47.126389]  __do_softirq+0x2c0/0x117c\n[   47.130142]\n[   47.131643] Freed by task 180:\n[   47.134712]  save_stack+0x24/0xb0\n[   47.138041]  __kasan_slab_free+0x108/0x180\n[   47.142146]  kasan_slab_free+0x10/0x18\n[   47.145904]  slab_free_freelist_hook+0xa4/0x1b0\n[   47.150444]  kmem_cache_free+0x8c/0x528\n[   47.154292]  kfree_skbmem+0x94/0x108\n[   47.157880]  consume_skb+0x10c/0x5a8\n[   47.161466]  __dev_kfree_skb_any+0x88/0xa0\n[   47.165598]  brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil]\n[   47.171023]  brcmf_txfinalize+0xec/0x190 [brcmfmac]\n[   47.176016]  brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac]\n[   47.182056]  brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac]\n[   47.187568]  brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac]\n[   47.192529]  brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac]\n[   47.197859]  process_one_work+0x7fc/0x1a80\n[   47.201965]  worker_thread+0x31c/0xc40\n[   47.205726]  kthread+0x2d8/0x370\n[   47.208967]  ret_from_fork+0x10/0x18\n[   47.212546]\n[   47.214051] The buggy address belongs to the object at ffffff803f588280\n[   47.214051]  which belongs to the cache skbuff_head_cache of size 208\n[   47.227086] The buggy address is located 104 bytes inside of\n[   47.227086]  208-byte region [ffffff803f588280, ffffff803f588350)\n[   47.238814] The buggy address belongs to the page:\n[   47.243618] page:ffffffff00dd6200 refcount:1 mapcou\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T16:03:53.197Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560"
        },
        {
          "url": "https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df"
        },
        {
          "url": "https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2"
        },
        {
          "url": "https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed"
        },
        {
          "url": "https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02"
        },
        {
          "url": "https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478"
        }
      ],
      "title": "wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50408",
    "datePublished": "2025-09-18T16:03:53.197Z",
    "dateReserved": "2025-09-17T14:53:07.001Z",
    "dateUpdated": "2025-09-18T16:03:53.197Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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