(RHSA-2019:3217) Important: kernel-alt security and bug fix update

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

• kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902)

• kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c (CVE-2018-20856)

• kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)

• hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

• kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• kernel modules pkey and paes_s390 are not available (BZ#1719192)

• pkey: Indicate old mkvp only if old and curr. mkvp are different (BZ#1720621)

• System dropped into Mon running softboots Exception: 501 (Hardware Interrupt) at c00000000000a814 replay_interrupt_return+0x0/0x4 (ipmi) (BZ#1737563)

• kernel: jump label transformation performance (BZ#1739143)

• Backport i40e MDD detection removal for PFs (BZ#1747618)