In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hci_alloc_dev() Early fail
위협 신호 · CVSS · EPSS · KEV
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CVSS 벡터 · 메트릭
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H약점 (CWE)
상세 설명
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: fix memory leak in error path of hci_alloc_dev()
Early failures in Bluetooth HCI UART configuration leak SRCU percpu
memory.
When device initialization fails before hci_register_dev() completes,
the HCI_UNREGISTER flag is never set. As a result, when the device
reference count reaches zero, bt_host_release() evaluates this flag as
false and falls back to a direct kfree(hdev).
Because hci_release_dev() is bypassed, the SRCU struct initialized
early in hci_alloc_dev() is never cleaned up, resulting in a leak of
percpu memory.
Fix the leak by explicitly calling cleanup_srcu_struct() in the
fallback (unregistered) branch of bt_host_release() before freeing
the device.
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영향받는 제품·버전
- linux linux_kernel6.15.5 - 6.16linux
- linux linux_kernel6.16.1 - 6.18.36linux
- linux linux_kernel6.19 - 7.0.13linux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernellinux
- linux linux_kernel5.10.259 - 5.11linux
- linux linux_kernel6.1.167 - 6.1.176linux
- linux linux_kernel6.6.97 - 6.6.143linux
- linux linux_kernel6.12.36 - 6.12.94linux
영향받는 구성 (CPE) 13
- linux linux_kernel≥ 5.10.259 < 5.11cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- linux linux_kernel 5.15.209cpe:2.3:o:linux:linux_kernel:5.15.209:*:*:*:*:*:*:*
- linux linux_kernel 6.16cpe:2.3:o:linux:linux_kernel:6.16:-:*:*:*:*:*:*
- linux linux_kernel 6.16cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*
- linux linux_kernel 6.16cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*
- linux linux_kernel 6.16cpe:2.3:o:linux:linux_kernel:6.16:rc6:*:*:*:*:*:*
- linux linux_kernel 6.16cpe:2.3:o:linux:linux_kernel:6.16:rc7:*:*:*:*:*:*
- linux linux_kernel 7.1cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- linux linux_kernel 7.1cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
- linux linux_kernel 7.1cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
- linux linux_kernel 7.1cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
- linux linux_kernel 7.1cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
- linux linux_kernel 7.1cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
참고 자료 7
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