CVE-2024-26892

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2024
Source publication: Apr 17, 2024
Source updated: May 23, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

wifi: mt76: mt7921e: fix use-after-free in free_irq()

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix use-after-free in free_irq() From commit a304e1b82808 ("[PATCH] Debug shared irqs"), there is a test to make sure the shared irq handler should be able to handle the unexpected event after deregistration. For this case, let's apply MT76_REMOVED flag to indicate the device was removed and do not run into the resource access anymore. BUG: KASAN: use-after-free in mt7921_irq_handler+0xd8/0x100 [mt7921e] Read of size 8 at addr ffff88824a7d3b78 by task rmmod/11115 CPU: 28 PID: 11115 Comm: rmmod Tainted: G W L 5.17.0 #10 Hardware name: Micro-Star International Co., Ltd. MS-7D73/MPG B650I EDGE WIFI (MS-7D73), BIOS 1.81 01/05/2024 Call Trace: <TASK> dump_stack_lvl+0x6f/0xa0 print_address_description.constprop.0+0x1f/0x190 ? mt7921_irq_handler+0xd8/0x100 [mt7921e] ? mt7921_irq_handler+0xd8/0x100 [mt7921e] kasan_report.cold+0x7f/0x11b ? mt7921_irq_handler+0xd8/0x100 [mt7921e] mt7921_irq_handler+0xd8/0x100 [mt7921e] free_irq+0x627/0xaa0 devm_free_irq+0x94/0xd0 ? devm_request_any_context_irq+0x160/0x160 ? kobject_put+0x18d/0x4a0 mt7921_pci_remove+0x153/0x190 [mt7921e] pci_device_remove+0xa2/0x1d0 __device_release_driver+0x346/0x6e0 driver_detach+0x1ef/0x2c0 bus_remove_driver+0xe7/0x2d0 ? __check_object_size+0x57/0x310 pci_unregister_driver+0x26/0x250 __do_sys_delete_module+0x307/0x510 ? free_module+0x6a0/0x6a0 ? fpregs_assert_state_consistent+0x4b/0xb0 ? rcu_read_lock_sched_held+0x10/0x70 ? syscall_enter_from_user_mode+0x20/0x70 ? trace_hardirqs_on+0x1c/0x130 do_syscall_64+0x5c/0x80 ? trace_hardirqs_on_prepare+0x72/0x160 ? do_syscall_64+0x68/0x80 ? trace_hardirqs_on_prepare+0x72/0x160 entry_SYSCALL_64_after_hwframe+0x44/0xae

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Linux

Vendor: Linux
Product: Linux
Platforms: Unknown
Default status: unaffected

Linux · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
9270270d62191b7549296721e8d5f3dc0df01563	`affected`	git	c7dd42fbebcfb02bef070fd48f774d6412d0b49d	Unavailable	None listed
9270270d62191b7549296721e8d5f3dc0df01563	`affected`	git	bfe1adf1606f76c180324e53b130f0e76d5cc6c3	Unavailable	None listed
9270270d62191b7549296721e8d5f3dc0df01563	`affected`	git	bfeaef901194c5923ce3330272786eff2fac513a	Unavailable	None listed
9270270d62191b7549296721e8d5f3dc0df01563	`affected`	git	c957280ef6ab6bdf559a91ae693a6b34310697e3	Unavailable	None listed
a76eaaaafd8b408238d7865bbbbd311f08988f3d	`affected`	git	Unavailable	Unavailable	None listed
95e41ac30a0d0b3637f0b3c93235a7a107a2fb7f	`affected`	git	Unavailable	Unavailable	None listed
6.2.15	`affected`	semver	6.3	Unavailable	None listed
6.3.2	`affected`	semver	6.4	Unavailable	None listed

Linux

Vendor: Linux
Product: Linux
Platforms: Unknown
Default status: affected

Linux · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
6.4	`affected`	Unavailable	Unavailable	Unavailable	None listed
0	`unaffected`	semver	6.4	Unavailable	None listed
6.6.23	`unaffected`	semver	Unavailable	6.6.*	None listed
6.7.11	`unaffected`	semver	Unavailable	6.7.*	None listed
6.8.2	`unaffected`	semver	Unavailable	6.8.*	None listed
6.9	`unaffected`	original_commit_for_fix	Unavailable	*	None listed