CVE-2024-26959

Bluetooth: btnxpuart: Fix btnxpuart_close

MEDIUM
5.5
CVSS Score
Published: May 1, 2024 at 05:19 AM UTC
Updated: June 17, 2026 at 07:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Fix btnxpuart_close Fix scheduling while atomic BUG in btnxpuart_close(), properly purge the transmit queue and free the receive skb. [ 10.973809] BUG: scheduling while atomic: kworker/u9:0/80/0x00000002 ... [ 10.980740] CPU: 3 PID: 80 Comm: kworker/u9:0 Not tainted 6.8.0-rc7-0.0.0-devel-00005-g61fdfceacf09 #1 [ 10.980751] Hardware name: Toradex Verdin AM62 WB on Dahlia Board (DT) [ 10.980760] Workqueue: hci0 hci_power_off [bluetooth] [ 10.981169] Call trace: ... [ 10.981363] uart_update_mctrl+0x58/0x78 [ 10.981373] uart_dtr_rts+0x104/0x114 [ 10.981381] tty_port_shutdown+0xd4/0xdc [ 10.981396] tty_port_close+0x40/0xbc [ 10.981407] uart_close+0x34/0x9c [ 10.981414] ttyport_close+0x50/0x94 [ 10.981430] serdev_device_close+0x40/0x50 [ 10.981442] btnxpuart_close+0x24/0x98 [btnxpuart] [ 10.981469] hci_dev_close_sync+0x2d8/0x718 [bluetooth] [ 10.981728] hci_dev_do_close+0x2c/0x70 [bluetooth] [ 10.981862] hci_power_off+0x20/0x64 [bluetooth]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.4 ≤ v < 6.6.246.4 ≤ v < 6.7.126.4 ≤ v < 6.8.36.4 ≤ v < 6.96.7 ≤ v < 6.7.126.8 ≤ v < 6.8.36.4689ca16e523278470c38832a3010645a78c544d8
Vendor states this is fixed in 586e099c93fe26b7bd40593979532f507ed9f6a4 (fixed)
Vendor states this is fixed in 664130c0b0309b360bc5bdd40a30604a9387bde8 (fixed)
Vendor states this is fixed in 74bcf708775c405f7fb6ed776ccd3e1957f38a52 (fixed)
Vendor states this is fixed in d4e2365b07f1ae1f811a915b514caef5b2d6581e (fixed)
Vendor states this is fixed in 6.4 (unaffected)
Vendor states this is fixed in 6.6.24 (unaffected)
Vendor states this is fixed in 6.7.12 (unaffected)
Vendor states this is fixed in 6.8.3 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/586e099c93fe26b7bd40593979532f507ed9f6a4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/664130c0b0309b360bc5bdd40a30604a9387bde8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/74bcf708775c405f7fb6ed776ccd3e1957f38a52
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d4e2365b07f1ae1f811a915b514caef5b2d6581e

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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