cbcvebase.
CVE-2024-46691
published 2024-09-13

CVE-2024-46691: In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Move unregister out of atomic section Commit '9329933699b3 ("soc: qcom…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
10.8th percentile
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Move unregister out of atomic section Commit '9329933699b3 ("soc: qcom: pmic_glink: Make client-lock non-sleeping")' moved the pmic_glink client list under a spinlock, as it is accessed by the rpmsg/glink callback, which in turn is invoked from IRQ context. This means that ucsi_unregister() is now called from atomic context, which isn't feasible as it's expecting a sleepable context. An effort is under way to get GLINK to invoke its callbacks in a sleepable context, but until then lets schedule the unregistration. A side effect of this is that ucsi_unregister() can now happen after the remote processor, and thereby the communication link with it, is gone. pmic_glink_send() is amended with a check to avoid the resulting NULL pointer dereference. This does however result in the user being informed about this error by the following entry in the kernel log: ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: failed to send UCSI write request: -5

Affected

15 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.10.9-1 (forky)linux 6.10.9-1 (forky)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 6.6.33 < 6.6.1306.6.130
linuxlinux>= 6.8.12 < 6.96.9
linuxlinux>= 6.9.3 < 6.106.10
linuxlinux>= 9329933699b32d467a99befa20415c4b2172389a < 095b0001aefddcd9361097c971b7debc84e72714095b0001aefddcd9361097c971b7debc84e72714
linuxlinux>= 9329933699b32d467a99befa20415c4b2172389a < 11bb2ffb679399f99041540cf662409905179e3a11bb2ffb679399f99041540cf662409905179e3a
linuxlinux>= fbadcde1572f6b00e1e343d8b24ec8bf7f3ec08d < 1e3769aa0946c2b6e509c06d7a0aa9b955eaef9e1e3769aa0946c2b6e509c06d7a0aa9b955eaef9e
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.10.9-16.10.9-1
linuxlinux_kernel>= 0 < 6.10.9-16.10.9-1
linuxlinux_kernel>= 0 < 6.8.0-50.516.8.0-50.51
linuxlinux_kernel>= 6.10 < 6.10.86.10.8

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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