NVD

CVE-2022-50408 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

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---

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

ADP: CISA-ADP

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560	kernel.org	Patch
https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02	kernel.org	Patch
https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e	kernel.org	Patch
https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478	kernel.org	Patch
https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2	kernel.org	Patch
https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96	kernel.org	Patch
https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df	kernel.org	Patch
https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed	kernel.org	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	NIST CISA-ADP

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Initial Analysis by NIST 12/11/2025 9:50:50 AM

Action	Type	New Value
Added	CVSS V3.1	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE	CWE-416
Added	CPE Configuration	OR cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 6.0 up to (excluding) 6.0.3 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 4.15 up to (excluding) 4.19.262 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 4.20 up to (excluding) 5.4.220 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.5 up to (excluding) 5.10.150 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.11 up to (excluding) 5.15.75 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.16 up to (excluding) 5.19.17 cpe:2.3:o:linux:linux_kernel::::::::* versions up to (excluding) 4.14.296
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed Types: Patch

New CVE Received from kernel.org 9/18/2025 12:15:44 PM

Action	Type	New Value
Added	Description	Record truncated, showing 2048 of 3998 characters. View Entire Change Record 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] Al
Added	Reference	https://git.kernel.org/stable/c/1613a7b24f1a7467cb727ba3ec77c9a808383560
Added	Reference	https://git.kernel.org/stable/c/232d59eca07f6ea27307022a33d226aff373bd02
Added	Reference	https://git.kernel.org/stable/c/27574a3f421c3a1694d0207f37c6bbf23d66978e
Added	Reference	https://git.kernel.org/stable/c/3f42faf6db431e04bf942d2ebe3ae88975723478
Added	Reference	https://git.kernel.org/stable/c/49c742afd60f552fce7799287080db02bffe1db2
Added	Reference	https://git.kernel.org/stable/c/c369836cff98d3877f98c98e15c0151462812d96
Added	Reference	https://git.kernel.org/stable/c/d79f4d903e14dde822c60b5fd3bedc5a289d25df
Added	Reference	https://git.kernel.org/stable/c/e01d96494a9de0f48b1167f0494f6d929fa773ed

Quick Info

CVE Dictionary Entry:
CVE-2022-50408
NVD Published Date:
09/18/2025
NVD Last Modified:
01/14/2026
Source:
kernel.org

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2022-50408 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CISA-ADP 1/14/2026 3:15:53 PM

Initial Analysis by NIST 12/11/2025 9:50:50 AM

New CVE Received from kernel.org 9/18/2025 12:15:44 PM

Quick Info