{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-54288", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54288", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-12-30T12:23:27.765Z", "updatedAt": "2026-05-23T15:35:20.917Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "wifi: mac80211: fortify the spinlock against deadlock by interrupt", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fortify the spinlock against deadlock by interrupt\n\nIn the function ieee80211_tx_dequeue() there is a particular locking\nsequence:\n\nbegin:\n\tspin_lock(&local->queue_stop_reason_lock);\n\tq_stopped = local->queue_stop_reasons[q];\n\tspin_unlock(&local->queue_stop_reason_lock);\n\nHowever small the chance (increased by ftracetest), an asynchronous\ninterrupt can occur in between of spin_lock() and spin_unlock(),\nand the interrupt routine will attempt to lock the same\n&local->queue_stop_reason_lock again.\n\nThis will cause a costly reset of the CPU and the wifi device or an\naltogether hang in the single CPU and single core scenario.\n\nThe only remaining spin_lock(&local->queue_stop_reason_lock) that\ndid not disable interrupts was patched, which should prevent any\ndeadlocks on the same CPU/core and the same wifi device.\n\nThis is the probable trace of the deadlock:\n\nkernel: ================================\nkernel: WARNING: inconsistent lock state\nkernel: 6.3.0-rc6-mt-20230401-00001-gf86822a1170f #4 Tainted: G W\nkernel: --------------------------------\nkernel: inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.\nkernel: kworker/5:0/25656 [HC0[0]:SC0[0]:HE1:SE1] takes:\nkernel: ffff9d6190779478 (&local->queue_stop_reason_lock){+.?.}-{2:2}, at: return_to_handler+0x0/0x40\nkernel: {IN-SOFTIRQ-W} state was registered at:\nkernel: lock_acquire+0xc7/0x2d0\nkernel: _raw_spin_lock+0x36/0x50\nkernel: ieee80211_tx_dequeue+0xb4/0x1330 [mac80211]\nkernel: iwl_mvm_mac_itxq_xmit+0xae/0x210 [iwlmvm]\nkernel: iwl_mvm_mac_wake_tx_queue+0x2d/0xd0 [iwlmvm]\nkernel: ieee80211_queue_skb+0x450/0x730 [mac80211]\nkernel: __ieee80211_xmit_fast.constprop.66+0x834/0xa50 [mac80211]\nkernel: __ieee80211_subif_start_xmit+0x217/0x530 [mac80211]\nkernel: ieee80211_subif_start_xmit+0x60/0x580 [mac80211]\nkernel: dev_hard_start_xmit+0xb5/0x260\nkernel: __dev_queue_xmit+0xdbe/0x1200\nkernel: neigh_resolve_output+0x166/0x260\nkernel: ip_finish_output2+0x216/0xb80\nkernel: __ip_finish_output+0x2a4/0x4d0\nkernel: ip_finish_output+0x2d/0xd0\nkernel: ip_output+0x82/0x2b0\nkernel: ip_local_out+0xec/0x110\nkernel: igmpv3_sendpack+0x5c/0x90\nkernel: igmp_ifc_timer_expire+0x26e/0x4e0\nkernel: call_timer_fn+0xa5/0x230\nkernel: run_timer_softirq+0x27f/0x550\nkernel: __do_softirq+0xb4/0x3a4\nkernel: irq_exit_rcu+0x9b/0xc0\nkernel: sysvec_apic_timer_interrupt+0x80/0xa0\nkernel: asm_sysvec_apic_timer_interrupt+0x1f/0x30\nkernel: _raw_spin_unlock_irqrestore+0x3f/0x70\nkernel: free_to_partial_list+0x3d6/0x590\nkernel: __slab_free+0x1b7/0x310\nkernel: kmem_cache_free+0x52d/0x550\nkernel: putname+0x5d/0x70\nkernel: do_sys_openat2+0x1d7/0x310\nkernel: do_sys_open+0x51/0x80\nkernel: __x64_sys_openat+0x24/0x30\nkernel: do_syscall_64+0x5c/0x90\nkernel: entry_SYSCALL_64_after_hwframe+0x72/0xdc\nkernel: irq event stamp: 5120729\nkernel: hardirqs last enabled at (5120729): [] trace_graph_return+0xd6/0x120\nkernel: hardirqs last disabled at (5120728): [] trace_graph_return+0xf0/0x120\nkernel: softirqs last enabled at (5069900): [] return_to_handler+0x0/0x40\nkernel: softirqs last disabled at (5067555): [] return_to_handler+0x0/0x40\nkernel:\n other info that might help us debug this:\nkernel: Possible unsafe locking scenario:\nkernel: CPU0\nkernel: ----\nkernel: lock(&local->queue_stop_reason_lock);\nkernel: \nkernel: lock(&local->queue_stop_reason_lock);\nkernel:\n *** DEADLOCK ***\nkernel: 8 locks held by kworker/5:0/25656:\nkernel: #0: ffff9d618009d138 ((wq_completion)events_freezable){+.+.}-{0:0}, at: process_one_work+0x1ca/0x530\nkernel: #1: ffffb1ef4637fe68 ((work_completion)(&local->restart_work)){+.+.}-{0:0}, at: process_one_work+0x1ce/0x530\nkernel: #2: ffffffff9f166548 (rtnl_mutex){+.+.}-{3:3}, at: return_to_handler+0x0/0x40\nkernel: #3: ffff9d619\n---truncated---", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "7b8fe53d2a1da48db02ae961b29b8ee2f5515861", "status": "affected", "versionType": "git", "lessThan": "c79d794a2cd76eca47b2491c5030be9a6418c5d6" }, { "version": "4444bc2116aecdcde87dce80373540adc8bd478b", "status": "affected", "versionType": "git", "lessThan": "6df3eafa31b3ee4f0cba601ca857019964355034" }, { "version": "4444bc2116aecdcde87dce80373540adc8bd478b", "status": "affected", "versionType": "git", "lessThan": "ef6e1997da63ad0ac3fe33153fec9524c9ae56c9" }, { "version": "6.1.9", "status": "affected", "versionType": "semver", "lessThan": "6.1.30" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.2" }, { "version": "6.1.30", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.3.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.3.*" }, { "version": "6.4", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }