#wifi

The aac_compat_ioctl function in drivers/scsi/aacraid/linit.c in the Linux kernel before 3.11.8 does not require the CAP_SYS_RAWIO capability, which allows local users to bypass intended access restrictions via a crafted ioctl call.

The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.

Overview The sun generates solar flare and coronal mass ejection (CME) events in an approximate 11-year cycle. The plasma clouds generated from these events have the potential to cause geomagnetic storms that can interfere with terrestrial communications and other electronic systems, posing a risk to critical infrastructure. In a recent case, Earth-orbiting satellites detected the strongest magnetic storm in more than 4 years resulting from a solar flare and CME event.National Oceanic and Atmospheric Administration (NOAA), Space Weather Prediction Center, http://www.swpc.noaa.gov/sxi/index.html, last accessed March 1, 2011. Figure 1 illustrates the size of the CME shockwave edge in relation to the size of the sun at the point of the eruption.      Figure 1. X2-solar flare and coronal mass ejection at the time of the eruption.  At 0156 UT on February 15, 2011, Active Region 11158 unleashed an X2-class eruption.James A. Marusek, “Solar Storm Threat Analysis,” http://www.breadandbuttersc...

The print_fatal_signal function in kernel/signal.c in the Linux kernel before 2.6.32.4 on the i386 platform, when print-fatal-signals is enabled, allows local users to discover the contents of arbitrary memory locations by jumping to an address and then reading a log file, and might allow local users to cause a denial of service (system slowdown or crash) by jumping to an address.