Описание
Moderate: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
- kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)
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):
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Rocky Linux8.4 Nightly[0308] - HST:STC950:Fleetwood: LPAR crashed during LPM: BUG at lib/locks.c:34! (using ibmvfc) (BZ#1969792)
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Rocky Linux8.2 - s390/vtime: fix increased steal time accounting (BZ#1988386)
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[FJ8.4 Bug]: Installation of Rocky Linux8.4 hang up on a Tatlow platform while loading intel_lpss_pci module. (BZ#1989560)
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kernel panic in drm_fb_helper_dirty_work() caused by a race condition qxl driver (BZ#1992839)
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[Rocky Linux8.4] TIOCGSERIAL ioctl fails on serial device (BZ#1993872)
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Rocky Linux8.4 Nightly[0208] - kernel panic when executing test case for persistent device configuration (using DASD) (BZ#1995206)
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Killing ceph daemon leaving an unhealthy ocs/ocp cluster (worker node/s NotReady) (BZ#1995862)
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ceph: potential data corruption in cephfs write_begin codepath (BZ#1996680)
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libceph: allow addrvecs with a single NONE/blank address (BZ#1996682)
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[iavf] traffic stops after host sets vf trust on (BZ#1997536)
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[ice][iavf] hit some call trace and system panic when create-remove-vfs in loop (BZ#1997538)
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Missing backport of IMA boot aggregate calculation in Rocky Linux 8.4 kernel (BZ#1997766)
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XArray tests broken for single processor (BZ#1997997)
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[Rocky Linux-8.4] mlock() end up returning -EINVAL instead of -ENOMEM in rewriting the upper address bits. (BZ#1997998)
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Kernel panic at n_tty_set_termios+0x30 (BZ#1997999)
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[ice]BUG: scheduling while atomic: ifenslave/270215/0x00000200 (BZ#2000129)
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[ice]port lost connectivity after removing from bonding (BZ#2000130)
Enhancement(s):
- [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 (BZ#1983681)
Затронутые продукты
Rocky Linux 8
Связанные CVE
Исправления
- Red Hat - 1983686
Связанные уязвимости
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result the L2 guest would be allowed to read/write physical pages of the host resulting in a crash of the entire system leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
A flaw was found in the KVM's AMD code for supporting SVM nested virtu ...