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Ubuntu: (Multiple Advisories) (CVE-2024-36916): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2024-36916): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/30/2024
Created
08/10/2024
Added
08/09/2024
Modified
09/20/2024

Description

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: avoid out of bounds shift UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [ 186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug.

Solution(s)

  • ubuntu-upgrade-linux-image-5-15-0-1035-xilinx-zynqmp
  • ubuntu-upgrade-linux-image-5-15-0-1050-gkeop
  • ubuntu-upgrade-linux-image-5-15-0-1060-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1060-raspi
  • ubuntu-upgrade-linux-image-5-15-0-1062-intel-iotg
  • ubuntu-upgrade-linux-image-5-15-0-1062-nvidia
  • ubuntu-upgrade-linux-image-5-15-0-1062-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-1064-gke
  • ubuntu-upgrade-linux-image-5-15-0-1064-kvm
  • ubuntu-upgrade-linux-image-5-15-0-1065-oracle
  • ubuntu-upgrade-linux-image-5-15-0-1066-gcp
  • ubuntu-upgrade-linux-image-5-15-0-1067-aws
  • ubuntu-upgrade-linux-image-5-15-0-1070-azure
  • ubuntu-upgrade-linux-image-5-15-0-1070-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-118-generic
  • ubuntu-upgrade-linux-image-5-15-0-118-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-118-generic-lpae
  • ubuntu-upgrade-linux-image-5-15-0-118-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-118-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-8-0-1008-gke
  • ubuntu-upgrade-linux-image-6-8-0-1009-raspi
  • ubuntu-upgrade-linux-image-6-8-0-1010-ibm
  • ubuntu-upgrade-linux-image-6-8-0-1010-oem
  • ubuntu-upgrade-linux-image-6-8-0-1010-oracle
  • ubuntu-upgrade-linux-image-6-8-0-1010-oracle-64k
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia-64k
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-8-0-1012-gcp
  • ubuntu-upgrade-linux-image-6-8-0-1013-aws
  • ubuntu-upgrade-linux-image-6-8-0-40-generic
  • ubuntu-upgrade-linux-image-6-8-0-40-generic-64k
  • ubuntu-upgrade-linux-image-6-8-0-40-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-40-lowlatency-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-lts-22-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-cvm
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-azure-fde-lts-22-04
  • ubuntu-upgrade-linux-image-azure-lts-22-04
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-22-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-15
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-15
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-classic
  • ubuntu-upgrade-linux-image-ibm-lts-24-04
  • ubuntu-upgrade-linux-image-intel
  • ubuntu-upgrade-linux-image-intel-iotg
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-nvidia
  • ubuntu-upgrade-linux-image-nvidia-6-8
  • ubuntu-upgrade-linux-image-nvidia-64k
  • ubuntu-upgrade-linux-image-nvidia-64k-6-8
  • ubuntu-upgrade-linux-image-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-20-04d
  • ubuntu-upgrade-linux-image-oem-24-04
  • ubuntu-upgrade-linux-image-oem-24-04a
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-64k
  • ubuntu-upgrade-linux-image-oracle-lts-22-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-hwe-24-04
  • ubuntu-upgrade-linux-image-xilinx-zynqmp

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