{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50716",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-24T12:20:40.329Z",
        "datePublished": "2025-12-24T12:22:40.461Z",
        "dateUpdated": "2026-05-11T19:24:08.284Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:24:08.284Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ar5523: Fix use-after-free on ar5523_cmd() timed out\n\nsyzkaller reported use-after-free with the stack trace like below [1]:\n\n[   38.960489][    C3] ==================================================================\n[   38.963216][    C3] BUG: KASAN: use-after-free in ar5523_cmd_tx_cb+0x220/0x240\n[   38.964950][    C3] Read of size 8 at addr ffff888048e03450 by task swapper/3/0\n[   38.966363][    C3]\n[   38.967053][    C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.0.0-09039-ga6afa4199d3d-dirty #18\n[   38.968464][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-1.fc36 04/01/2014\n[   38.969959][    C3] Call Trace:\n[   38.970841][    C3]  <IRQ>\n[   38.971663][    C3]  dump_stack_lvl+0xfc/0x174\n[   38.972620][    C3]  print_report.cold+0x2c3/0x752\n[   38.973626][    C3]  ? ar5523_cmd_tx_cb+0x220/0x240\n[   38.974644][    C3]  kasan_report+0xb1/0x1d0\n[   38.975720][    C3]  ? ar5523_cmd_tx_cb+0x220/0x240\n[   38.976831][    C3]  ar5523_cmd_tx_cb+0x220/0x240\n[   38.978412][    C3]  __usb_hcd_giveback_urb+0x353/0x5b0\n[   38.979755][    C3]  usb_hcd_giveback_urb+0x385/0x430\n[   38.981266][    C3]  dummy_timer+0x140c/0x34e0\n[   38.982925][    C3]  ? notifier_call_chain+0xb5/0x1e0\n[   38.984761][    C3]  ? rcu_read_lock_sched_held+0xb/0x60\n[   38.986242][    C3]  ? lock_release+0x51c/0x790\n[   38.987323][    C3]  ? _raw_read_unlock_irqrestore+0x37/0x70\n[   38.988483][    C3]  ? __wake_up_common_lock+0xde/0x130\n[   38.989621][    C3]  ? reacquire_held_locks+0x4a0/0x4a0\n[   38.990777][    C3]  ? lock_acquire+0x472/0x550\n[   38.991919][    C3]  ? rcu_read_lock_sched_held+0xb/0x60\n[   38.993138][    C3]  ? lock_acquire+0x472/0x550\n[   38.994890][    C3]  ? dummy_urb_enqueue+0x860/0x860\n[   38.996266][    C3]  ? do_raw_spin_unlock+0x16f/0x230\n[   38.997670][    C3]  ? dummy_urb_enqueue+0x860/0x860\n[   38.999116][    C3]  call_timer_fn+0x1a0/0x6a0\n[   39.000668][    C3]  ? add_timer_on+0x4a0/0x4a0\n[   39.002137][    C3]  ? reacquire_held_locks+0x4a0/0x4a0\n[   39.003809][    C3]  ? __next_timer_interrupt+0x226/0x2a0\n[   39.005509][    C3]  __run_timers.part.0+0x69a/0xac0\n[   39.007025][    C3]  ? dummy_urb_enqueue+0x860/0x860\n[   39.008716][    C3]  ? call_timer_fn+0x6a0/0x6a0\n[   39.010254][    C3]  ? cpuacct_percpu_seq_show+0x10/0x10\n[   39.011795][    C3]  ? kvm_sched_clock_read+0x14/0x40\n[   39.013277][    C3]  ? sched_clock_cpu+0x69/0x2b0\n[   39.014724][    C3]  run_timer_softirq+0xb6/0x1d0\n[   39.016196][    C3]  __do_softirq+0x1d2/0x9be\n[   39.017616][    C3]  __irq_exit_rcu+0xeb/0x190\n[   39.019004][    C3]  irq_exit_rcu+0x5/0x20\n[   39.020361][    C3]  sysvec_apic_timer_interrupt+0x8f/0xb0\n[   39.021965][    C3]  </IRQ>\n[   39.023237][    C3]  <TASK>\n\nIn ar5523_probe(), ar5523_host_available() calls ar5523_cmd() as below\n(there are other functions which finally call ar5523_cmd()):\n\nar5523_probe()\n-> ar5523_host_available()\n   -> ar5523_cmd_read()\n      -> ar5523_cmd()\n\nIf ar5523_cmd() timed out, then ar5523_host_available() failed and\nar5523_probe() freed the device structure.  So, ar5523_cmd_tx_cb()\nmight touch the freed structure.\n\nThis patch fixes this issue by canceling in-flight tx cmd if submitted\nurb timed out."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/ath/ar5523/ar5523.c"
                    ],
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                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
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                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
                            "lessThan": "340524ae7b53a72cf5d9e7bd7790433422b3b12f",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "lessThan": "6447beefd21326a3f4719ec2ea511df797f6c820",
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                        },
                        {
                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
                            "lessThan": "8af52492717e3538eba3f81d012b1476af8a89a6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
                            "lessThan": "3eca9697c2f3905dea3ad2fc536ebaa1fbd735bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
                            "lessThan": "601ae89375033ac4870c086e24ba03f235d38e55",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
                            "lessThan": "9aef34e1ae35a87e5f6a22278c17823b7ce64c88",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b7d572e1871df06a96a1c9591c71c5494ff6b624",
                            "lessThan": "b6702a942a069c2a975478d719e98d83cdae1797",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/ath/ar5523/ar5523.c"
                    ],
                    "versions": [
                        {
                            "version": "3.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.337",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.303",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.270",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.229",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.163",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.86",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.16",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.2",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "4.9.337"
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                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "4.14.303"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c9ba3fbf6a488da6cad1d304c5234bd8d729eba3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/340524ae7b53a72cf5d9e7bd7790433422b3b12f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6447beefd21326a3f4719ec2ea511df797f6c820"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7360b323e0343ea099091d4ae09576dbe1f09516"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8af52492717e3538eba3f81d012b1476af8a89a6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3eca9697c2f3905dea3ad2fc536ebaa1fbd735bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/601ae89375033ac4870c086e24ba03f235d38e55"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9aef34e1ae35a87e5f6a22278c17823b7ce64c88"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b6702a942a069c2a975478d719e98d83cdae1797"
                }
            ],
            "title": "wifi: ar5523: Fix use-after-free on ar5523_cmd() timed out",
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}