A flaw was found in in the Linux kernel's USB device management code which could cause a crash when a device which required cypress_m8 driver. The kernel would panic causing null pointer dereference. Product bug: https://bugzilla.redhat.com/show_bug.cgi?id=1283368
Acknowledgments: Name: Ralf Spenneberg (OpenSource Security)
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1317010]
Public via: http://seclists.org/bugtraq/2016/Mar/55 CVE-ID request and assignment: http://seclists.org/oss-sec/2016/q1/604 http://seclists.org/oss-sec/2016/q1/621
(In reply to Adam Mariš from comment #0) > Kernel crash occurs when presented a buggy USB device which requires cdc_acm > driver, causing null pointer dereference. > > Product bug: > > https://bugzilla.redhat.com/show_bug.cgi?id=1283368 The initial comment calls out cdc_acm, but this bug is for the cypress_m8 driver as the bug Summary states. The cdc_acm issue is traced in bug 1316204. Just pointing this out in case anyone reads this later and gets confused.
Patch sent upstream: http://marc.info/?l=linux-usb&m=145813816318926&w=2 http://www.spinics.net/lists/linux-usb/msg137797.html http://www.spinics.net/lists/linux-usb/msg137874.html Upstream patch: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c55aee1bf0e6b6feec8b2927b43f7a09a6d5f754
Statement: This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code with the flaw is not present in the products listed. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
kernel-4.5.0-302.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
kernel-4.4.6-301.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
kernel-4.4.6-201.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.