DEBIAN-CVE-2021-47383

In the Linux kernel, the following vulnerability has been resolved: tty: Fix out-of-bound vmalloc access in imageblit This issue happens when a userspace program does an ioctl FBIOPUTVSCREENINFO passing the fbvarscreeninfo struct containing only the fields xres, yres, and bitsperpixel with values...

CVE-2021-47365

In the Linux kernel, the following vulnerability has been resolved: afs: Fix page leak There's a loop in afsextendwriteback that adds extra pages to a write we want to make to improve the efficiency of the writeback by making it larger. This loop stops, however, if we hit a page we can't write ba...

DEBIAN-CVE-2021-47300

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tailcallreachable rejection for interpreter when jit failed During testing of f263a81451c1 "bpf: Track subprog poke descriptors correctly and fix use-after-free" under various failure conditions, for example, when...

CVE-2021-47300

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tailcallreachable rejection for interpreter when jit failed During testing of f263a81451c1 "bpf: Track subprog poke descriptors correctly and fix use-after-free" under various failure conditions, for example, when...

CVE-2021-47269

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: ep0: fix NULL pointer exception There is no validation of the index from dwc3wIndextodep and we might be referring a non-existing ep and trigger a NULL pointer exception. In certain configurations we might use fewer ep...

CVE-2021-47419

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

CVE-2021-47397

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skbheaderpointer returns NULL in sctprcvootb We should always check if skbheaderpointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in rang...

CVE-2021-47424

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix freeing of uninitialized misc IRQ vector When VSI set up failed in i40eprobe as part of PF switch set up driver was trying to free misc IRQ vectors in i40eclearinterruptscheme and produced a kernel Oops: Trying to free...

UBUNTU-CVE-2021-47300

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tailcallreachable rejection for interpreter when jit failed During testing of f263a81451c1 "bpf: Track subprog poke descriptors correctly and fix use-after-free" under various failure conditions, for example, when...

UBUNTU-CVE-2021-47327

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fix armsmmudevice refcount leak when armsmmurpmget fails armsmmurpmget invokes pmruntimegetsync, which increases the refcount of the "smmu" even though the return value is less than 0. The reference counting issue...

CVE-2021-47337

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix bad pointer dereference when ehandler kthread is invalid Commit 66a834d09293 "scsi: core: Fix error handling of scsihostalloc" changed the allocation logic to call putdevice to perform host cleanup with the...

UBUNTU-CVE-2021-47419

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

CVE-2021-47424 i40e: Fix freeing of uninitialized misc IRQ vector

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix freeing of uninitialized misc IRQ vector When VSI set up failed in i40eprobe as part of PF switch set up driver was trying to free misc IRQ vectors in i40eclearinterruptscheme and produced a kernel Oops: Trying to free...

CVE-2021-47424

The CVE-2021-47424 issue affects the Linux kernel i40e driver. When VSI setup fails during PF switch in i40e_probe(), the code attempted to free misc IRQ vectors in i40e_clear_interrupt_scheme, potentially freeing an IRQ that had not been allocated yet, leading to a kernel Oops (example trace sho...

CVE-2021-47418 net_sched: fix NULL deref in fifo_set_limit()

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...

CVE-2021-47418 net_sched: fix NULL deref in fifo_set_limit()

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...

CVE-2021-47400

CVE-2021-47400 concerns the Linux kernel HNS3 driver where hns3_nic_net_open() could be invoked repeatedly during concurrent device reset and TC setup, risking a kernel bug via napi_enable being called twice. The fix adds a check for the HNS3_NIC_STATE_DOWN flag and returns early if not set, prev...

CVE-2021-47395 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap Limit max values for vht mcs and nss in ieee80211parsetxradiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at...

CVE-2021-47387 cpufreq: schedutil: Use kobject release() method to free sugov_tunables

In the Linux kernel, the following vulnerability has been resolved: cpufreq: schedutil: Use kobject release method to free sugovtunables The struct sugovtunables is protected by the kobject, so we can't free it directly. Otherwise we would get a call trace like this: ODEBUG: free active active...

CVE-2021-47387 cpufreq: schedutil: Use kobject release() method to free sugov_tunables

In the Linux kernel, the following vulnerability has been resolved: cpufreq: schedutil: Use kobject release method to free sugovtunables The struct sugovtunables is protected by the kobject, so we can't free it directly. Otherwise we would get a call trace like this: ODEBUG: free active active...