CVE-2021-47108

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: hdmi: Perform NULL pointer check for mtkhdmiconf In commit 41ca9caaae0b "drm/mediatek: hdmi: Add check for CEA modes only" a check for CEA modes was added to function mtkhdmibridgemodevalid in order to address...

Buffer overflow

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix READDIR buffer overflow If a client sends a READDIR count argument that is too small say, zero, then the buffer size calculation in the new initdirlist helper functions results in an underflow, allowing the XDR stream...

CVE-2021-47106

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix use-after-free in nftsetcatchalldestroy We need to use listforeachentrysafe iterator because we can not access @catchall after kfreercu call. syzbot reported: BUG: KASAN: use-after-free in...

CVE-2023-52578

In the Linux kernel, the following vulnerability has been resolved: net: bridge: use DEVSTATSINC syzbot/KCSAN reported data-races in brhandleframefinish 1 This function can run from multiple cpus without mutual exclusion. Adopt SMP safe DEVSTATSINC to update dev-stats fields. Handles updates to...

CVE-2021-47108 drm/mediatek: hdmi: Perform NULL pointer check for mtk_hdmi_conf

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: hdmi: Perform NULL pointer check for mtkhdmiconf In commit 41ca9caaae0b "drm/mediatek: hdmi: Add check for CEA modes only" a check for CEA modes was added to function mtkhdmibridgemodevalid in order to address...

CVE-2021-47108

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: hdmi: Perform NULL pointer check for mtkhdmiconf In commit 41ca9caaae0b "drm/mediatek: hdmi: Add check for CEA modes only" a check for CEA modes was added to function mtkhdmibridgemodevalid in order to address...

CVE-2021-47104 IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Fix memory leak in qibusersdmaqueuepkts The wrong goto label was used for the error case and missed cleanup of the pkt allocation. Addresses-Coverity-ID: 1493352 "Resource leak"...

CVE-2021-47104 IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Fix memory leak in qibusersdmaqueuepkts The wrong goto label was used for the error case and missed cleanup of the pkt allocation. Addresses-Coverity-ID: 1493352 "Resource leak"...

CVE-2021-47101

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asixmdioread asixreadcmd may read less than sizeofsmsr bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asixcheckhostenable drivers/net/usb/asixcommon.c:82 inline...

CVE-2021-47087

In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages struct page page has already progressed towards the end of allocation. It is incorrect to perform freepagespage, order using this pointer as we would free any...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: mm/hwpoison: clear MFCOUNTINCREASED before retrying getanypage Hulk Robot reported a panic in putpagetestzero when testing madvise with MADVSOFTOFFLINE. The BUG is triggered when retrying getanypage. This is because we keep...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asixmdioread asixreadcmd may read less than sizeofsmsr bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asixcheckhostenable drivers/net/usb/asixcommon.c:82 inline...

CVE-2021-47094

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Don't advance iterator after restart due to yielding After dropping mmulock in the TDP MMU, restart the iterator during tdpiternext and do not advance the iterator. Advancing the iterator results in skipping the...

CVE-2021-47103

In the Linux kernel, the following vulnerability has been resolved: inet: fully convert sk-skrxdst to RCU rules syzbot reported various issues around early demux, one being included in this changelog 1 sk-skrxdst is using RCU protection without clearly documenting it. And following sequences in...

CVE-2021-47087

In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages struct page page has already progressed towards the end of allocation. It is incorrect to perform freepagespage, order using this pointer as we would free any...

CVE-2021-47086

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1 We'd...

CVE-2021-47102

In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix incorrect structure access In line: upper = info-upperdev; We access upperdev field, which is related only for particular events e.g. event == NETDEVCHANGEUPPER. So, this line cause invalid memory acce...

CVE-2021-47100 ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix UAF when uninstall ipmisi and ipmimsghandler module Hi, When testing install and uninstall of ipmisi.ko and ipmimsghandler.ko, the system crashed. The log as follows: 141.087026 BUG: unable to handle kernel paging reque...

CVE-2021-47087 tee: optee: Fix incorrect page free bug

In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages struct page page has already progressed towards the end of allocation. It is incorrect to perform freepagespage, order using this pointer as we would free any...

CVE-2021-47082 tun: avoid double free in tun_free_netdev

In the Linux kernel, the following vulnerability has been resolved: tun: avoid double free in tunfreenetdev Avoid double free in tunfreenetdev by moving the dev-tstats and tun-security allocs to a new ndoinit routine tunnetinit that will be called by registernetdevice. ndoinit is paired with the...