CVE-2026-90229

Status: UPDATED  |  Advisory ID: CVE-2026-90229

Key Details

Affected Products, Subsystems & Sectors

What to Know

In the Linux kernel, the following vulnerability has been resolved:

nvme-apple: Destroy the admin queue on removal

The admin queue is allocated with blk_mq_alloc_queue() but never

destroyed. nvme_free_ctrl() only drops the last reference and

blk_mq_exit_queue() and blk_sync_queue() never run: the hctx is never

moved to q->unused_hctx_list and the timeout timer and work stay armed on

a queue that is about to be freed which will eventually oops inside

blk_mq_timeout_work().

This can only be triggered when the controller fails to come up and is

then immediately torn down again which is why no one ever ran into this

before.

Let's just copy what the pcie driver does: unquiesce and destroy the admin

queue before nvme_uninit_ctrl().

With this the following WARN followed by a panic no longer happens:

WARNING: block/blk-mq.c:4390 at blk_mq_release+0x194/0x238, CPU#4: kworker/u34:4/119

CPU: 4 UID: 0 PID: 119 Comm: kworker/u34:4 Not tainted 7.2.0-rc1-dirty #248 PREEMPT

Hardware name: Apple Mac mini (M1, 2020) (DT)

Workqueue: nvme-wq apple_nvme_remove_dead_ctrl_work

pstate: 61400005 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)

pc : blk_mq_release+0x194/0x238

lr : blk_mq_release+0x58/0x238

sp : ffffc000833a3b50

x29: ffffc000833a3b50 x28: ffff80001d0450f8 x27: ffff800020c95200

x26: 0000000000000088 x25: 0000000000000000 x24: ffff800020f36805

x23: 0000000000000000 x22: ffffc00081a86878 x21: ffff800020be9c60

x20: 0000000000000000 x19: ffff800022501698 x18: 000000000000000a

x17: 7365757165722066 x16: 666f7265776f7020 x15: 0000000000000000

x14: 0000000000000028 x13: 0000000000004def x12: 0000000000000003

x11: 0000000000000000 x10: 0000000000000000 x9 : ffffc000805b4fc8

x8 : ffffc00081915820 x7 : ffffc00081c4f3c8 x6 : 0000000000000001

x5 : 0000000000000004 x4 : ffff800022498d80 x3 : ffffc000833a3b14

x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff800022501698

Call trace:

blk_mq_release+0x194/0x238 (P)

blk_put_queue+0x8c/0xf0

nvme_free_ctrl+0x4c/0x260

device_release+0x44/0x128

kobject_put+0xa0/0x120

put_device+0x1c/0x40

nvme_uninit_ctrl+0x48/0x60

apple_nvme_remove+0x54/0xb0

platform_remove+0x28/0x40

device_remove+0x54/0x98

device_release_driver_internal+

device_release_driver+0x20/0x38

apple_nvme_remove_dead_ctrl_wor

process_one_work+0x1f4/0x770

worker_thread+0x1b8/0x360

kthread+0x140/0x160

ret_from_fork+0x10/0x20

irq event stamp: 448

hardirqs last enabled at (447):in_unlock_irqrestore+0x74/0x80

hardirqs last disabled at (448): [<ffffc000811cf5c0>] el1_brk64+0x20/0x60

softirqs last enabled at (0): [ess+0xb28/0x2698

softirqs last disabled at (0): [<0000000000000000>] 0x0

---[ end trace 0000000000000000

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000

Mem abort info:

ESR = 0x0000000096000005

EC = 0x25: DABT (current EL),

SET = 0, FnV = 0

EA = 0, S1PTW = 0

FSC = 0x05: level 1 translation fault

Data abort info:

ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000

CM = 0, WnR = 0, TnD = 0, TagA

GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0

[0000000000000000] user address

Internal error: Oops: 0000000096000005 [#1] SMP

CPU: 7 UID: 0 PID: 54 Comm: kwor 7.2.0-rc1-dirty #248PREEMPT

Tainted: [W]=WARN

Hardware name: Apple Mac mini (M1, 2020) (DT)

Workqueue: kblockd blk_mq_timeou

pstate: 01400005 (nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)

pc : percpu_ref_tryget_many.cons

lr : percpu_ref_tryget_many.constprop.0+0xc0/0x168

sp : ffffc000829cbce0

x29: ffffc000829cbce0 x28: ffff800020be9f48 x27: ffff800013e503c0

x26: 0000000000000108 x25: 000009c05

x23: 0000000000000000 x22: ffffc000819f5000 x21: ffff800020be9f48

x20: ffff8001deda4808 x19: ffff8000a

x17: 00000000580e1fac x16: ffffc00082bbbb7c x15: 0000000000000000

x14: 0000000000000028 x13: 000000001

x11: 0000000000000000 x10: 0000000000000000 x9 : ffffc000829cbc20

x8 :

---truncated--- (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References