UBUNTU-CVE-2022-49556

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak For some sev ioctl interfaces, the length parameter that is passed maybe less than or equal to SEVFWBLOBMAXSIZE, but larger than the data that PSP firmwar...

UBUNTU-CVE-2022-49276

In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2scanmedium If an error is returned in jffs2scaneraseblock and some memory has been added to the jffs2summary s, we can observe the following kmemleak report:...

UBUNTU-CVE-2022-49392

In the Linux kernel, the following vulnerability has been resolved: serial: 8250aspeedvuart: Fix potential NULL dereference in aspeedvuartprobe platformgetresource may fail and return NULL, so we should better check it's return value to avoid a NULL pointer dereference...

UBUNTU-CVE-2022-49724

In the Linux kernel, the following vulnerability has been resolved: tty: goldfish: Fix freeirq on remove Pass the correct devid to freeirq to fix this splat when the driver is unbound: WARNING: CPU: 0 PID: 30 at kernel/irq/manage.c:1895 freeirq Trying to free already-free IRQ 65 Call Trace:...

UBUNTU-CVE-2022-49643

In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in imaappraisemeasurement When the ima-modsig is enabled, the rc passed to evmverifyxattr may be negative, which may cause the integer overflow problem...

UBUNTU-CVE-2022-49322

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix sleeping function called from invalid context on RT kernel When setting bootparams="traceevent=initcall:initcallstart tpprintk=1" in the cmdline, the outputprintk was called, and the spinlockirqsave was called in the...

UBUNTU-CVE-2022-49377

In the Linux kernel, the following vulnerability has been resolved: blk-mq: don't touch -tagset in blkmqgetsqhctx blkmqrunhwqueues could be run when there isn't queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often free...

UBUNTU-CVE-2022-49439

In the Linux kernel, the following vulnerability has been resolved: powerpc/fslrio: Fix refcount leak in fslriosetup ofparsephandle returns a node pointer with refcount incremented, we should use ofnodeput on it when not need anymore. Add missing ofnodeput to avoid refcount leak...

UBUNTU-CVE-2022-49710

In the Linux kernel, the following vulnerability has been resolved: dm mirror log: round up region bitmap size to BITSPERLONG The code in dm-log rounds up bitsetsize to 32 bits. It then uses findnextzerobitle on the allocated region. findnextzerobitle accesses the bitmap using unsigned long...

UBUNTU-CVE-2022-49701

In the Linux kernel, the following vulnerability has been resolved: scsi: ibmvfc: Allocate/free queue resource only during probe/remove Currently, the sub-queues and event pool resources are allocated/freed for every CRQ connection event such as reset and LPM. This exposes the driver to a couple...

UBUNTU-CVE-2022-49658

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insufficient bounds propagation from adjustscalarminmaxvals Kuee reported a corner case where the tnum becomes constant after the call to regboundoffset, but the register's bounds are not, that is, its min bounds are sti...

UBUNTU-CVE-2022-49364

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to clear dirty inode in f2fsevictinode As Yanming reported in bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215904 The kernel message is shown below: kernel BUG at fs/f2fs/inode.c:825! Call Trace: evict+0x282/0x4...

UBUNTU-CVE-2022-49576

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix data-races around sysctlfibmultipathhashfields. While reading sysctlfibmultipathhashfields, it can be changed concurrently. Thus, we need to add READONCE to its readers...

UBUNTU-CVE-2022-49442

In the Linux kernel, the following vulnerability has been resolved: drivers/base/node.c: fix compaction sysfs file leak Compaction sysfs file is created via compactionregisternode in registernode. But we forgot to remove it in unregisternode. Thus compaction sysfs file is leaked. Using...

UBUNTU-CVE-2022-49352

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in ext4handleinodeextension We got issue as follows: EXT4-fs error device loop0 in ext4reserveinodewrite:5741: Out of memory EXT4-fs error device loop0: ext4setattr:5462: inode 13: comm syz-executor.0:...

UBUNTU-CVE-2022-49265

In the Linux kernel, the following vulnerability has been resolved: PM: domains: Fix sleep-in-atomic bug caused by genpddebugremove When a genpd with GENPDFLAGIRQSAFE gets removed, the following sleep-in-atomic bug will be seen, as genpddebugremove will be called with a spinlock being held...

UBUNTU-CVE-2022-49572

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpslowstartafteridle. While reading sysctltcpslowstartafteridle, it can be changed concurrently. Thus, we need to add READONCE to its readers...

UBUNTU-CVE-2022-49316

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Don't hold the layoutget locks across multiple RPC calls When doing layoutget as part of the open compound, we have to be careful to release the layout locks before we can call any further RPC calls, such as setattr. The...

UBUNTU-CVE-2022-49628

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix leaks in probe These two error paths should clean up before returning...

UBUNTU-CVE-2022-49599

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpl3mdevaccept. While reading sysctltcpl3mdevaccept, it can be changed concurrently. Thus, we need to add READONCE to its readers...

UBUNTU-CVE-2022-49311

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192bs: Fix deadlock in rtwjoinbsseventprehandle There is a deadlock in rtwjoinbsseventprehandle, which is shown below: Thread 1 | Thread 2 | settimer rtwjoinbsseventprehandle| modtimer spinlockbh //1 | wait ...

UBUNTU-CVE-2022-49314

In the Linux kernel, the following vulnerability has been resolved: tty: Fix a possible resource leak in icomprobe When pcireadconfigdword failed, call pcireleaseregions and pcidisabledevice to recycle the resource previously allocated...

UBUNTU-CVE-2022-49381

In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2dofillsuper If jffs2iget or dmakeroot in jffs2dofillsuper returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object...

UBUNTU-CVE-2022-49488

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5mixerrelease when deadlock is detected There is a possibility for mdp5getglobalstate to return -EDEADLK when acquiring the modeset lock, but currently globalstate in mdp5mixerrelease doesn't...

UBUNTU-CVE-2022-49574

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcprecovery. While reading sysctltcprecovery, it can be changed concurrently. Thus, we need to add READONCE to its readers...

UBUNTU-CVE-2022-49559

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...

UBUNTU-CVE-2022-49408

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in parseapplysbmountoptions If processing the on-disk mount options fails after any memory was allocated in the ext4fscontext, e.g. sqfnames, then this memory is leaked. Fix this by calling ext4fcfree instea...

UBUNTU-CVE-2022-49335

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/cs: make commands with 0 chunks illegal behaviour. Submitting a cs with 0 chunks, causes an oops later, found trying to execute the wrong userspace driver. MESALOADERDRIVEROVERRIDE=v3d glxinfo 172536.665184 BUG: kernel...

UBUNTU-CVE-2022-49345

In the Linux kernel, the following vulnerability has been resolved: net: xfrm: unexport init-annotated xfrm4protocolinit EXPORTSYMBOL and init is a bad combination because the .init.text section is freed up after the initialization. Hence, modules cannot use symbols annotated init. The access to ...

UBUNTU-CVE-2022-49315

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192e: Fix deadlock in rtllibbeaconsstop There is a deadlock in rtllibbeaconsstop, which is shown below: Thread 1 | Thread 2 | rtllibsendbeacon rtllibbeaconsstop | modtimer spinlockirqsave //1 | wait a time...

UBUNTU-CVE-2022-49668

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: exynos-ppmu: Fix refcount leak in ofgetdevfreqevents ofgetchildbyname returns a node pointer with refcount incremented, we should use ofnodeput on it when done. This function only calls ofnodeput in normal path,...

UBUNTU-CVE-2022-49557

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: KVM: Set the base guest FPU uABI size to sizeofstruct kvmxsave Set the starting uABI size of KVM's guest FPU to 'struct kvmxsave', i.e. to KVM's historical uABI size. When saving FPU state for usersapce, KVM well, now th...

UBUNTU-CVE-2022-49395

In the Linux kernel, the following vulnerability has been resolved: um: Fix out-of-bounds read in LDT setup syscallstubdata expects the datacount parameter to be the number of longs, not bytes. ================================================================== BUG: KASAN: stack-out-of-bounds in...

UBUNTU-CVE-2022-49571

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpmaxreordering. While reading sysctltcpmaxreordering, it can be changed concurrently. Thus, we need to add READONCE to its readers...

UBUNTU-CVE-2022-49562

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use trycmpxchguser to update guest PTE A/D bits Use the recently introduced trycmpxchguser to update guest PTE A/D bits instead of mapping the PTE into kernel address space. The VMPFNMAP path is broken as it assumes tha...

UBUNTU-CVE-2022-49581

In the Linux kernel, the following vulnerability has been resolved: be2net: Fix buffer overflow in begetmoduleeeprom becmdreadporttransceiverdata assumes that it is given a buffer that is at least PAGEDATALEN long, or twice that if the module supports SFF 8472. However, this is not always the cas...

UBUNTU-CVE-2022-49611

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly i...

UBUNTU-CVE-2022-49456

In the Linux kernel, the following vulnerability has been resolved: bonding: fix missed rcu protection When removing the rcureadlock in bondethtoolgettsinfo as discussed 1, I didn't notice it could be called via setsockopt, which doesn't hold rcu lock, as syzbot pointed: stack backtrace: CPU: 0...

UBUNTU-CVE-2022-49320

In the Linux kernel, the following vulnerability has been resolved: dmaengine: zynqmpdma: In struct zynqmpdmachan fix descsize data type In zynqmpdmaalloc/freechanresources functions there is a potential overflow in the below expressions. dmaalloccoherentchan-dev, 2 chan-descsize ZYNQMPDMANUMDESC...

UBUNTU-CVE-2022-49379

In the Linux kernel, the following vulnerability has been resolved: driver core: Fix waitfordeviceprobe & deferredprobetimeout interaction Mounting NFS rootfs was timing out when deferredprobetimeout was non-zero 1. This was because ipautoconfig initcall times out waiting for the network interfac...

UBUNTU-CVE-2022-49492

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix a NULL pointer dereference in nvmeallocadmintags In nvmeallocadmintags, the adminq can be set to an error typically -ENOMEM if the blkmqinitqueue call fails to set up the queue, which is checked immediately after th...

UBUNTU-CVE-2022-49406

In the Linux kernel, the following vulnerability has been resolved: block: Fix potential deadlock in blkiarangesysfsshow When being read, a sysfs attribute is already protected against removal with the kobject node active reference counter. As a result, in blkiarangesysfsshow, there is no need to...

UBUNTU-CVE-2022-49670

In the Linux kernel, the following vulnerability has been resolved: linux/dim: Fix divide by 0 in RDMA DIM Fix a divide 0 error in rdmadimstatscompare when prev-cperatio == 0. CallTrace: Hardware name: H3C R4900 G3/RS33M2C9S, BIOS 2.00.37P21 03/12/2020 task: ffff880194b78000 task.stack:...

UBUNTU-CVE-2022-49597

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpbasemss. While reading sysctltcpbasemss, it can be changed concurrently. Thus, we need to add READONCE to its readers...

UBUNTU-CVE-2022-49419

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: vesafb: Fix a use-after-free due early fbinfo cleanup Commit b3c9a924aab6 "fbdev: vesafb: Cleanup fbinfo in .fbdestroy rather than .remove" fixed a use-after-free error due the vesafb driver freeing the fbinfo in th...

UBUNTU-CVE-2022-49279

In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent integer overflow on 32 bit systems On a 32 bit system, the "len sizeofp" operation can have an integer overflow...

UBUNTU-CVE-2022-49480

In the Linux kernel, the following vulnerability has been resolved: ASoC: imx-hdmi: Fix refcount leak in imxhdmiprobe offinddevicebynode takes reference, we should use putdevice to release it. when devmkzalloc fails, it doesn't have a putdevice, it will cause refcount leak. Add missing putdevice ...

UBUNTU-CVE-2022-49682

In the Linux kernel, the following vulnerability has been resolved: xtensa: Fix refcount leak bug in time.c In calibrateccount, offindcompatiblenode will return a node pointer with refcount incremented. We should use ofnodeput when it is not used anymore...

UBUNTU-CVE-2022-49621

In the Linux kernel, the following vulnerability has been resolved: cpufreq: pmac32-cpufreq: Fix refcount leak bug In pmaccpufreqinitMacRISC3, we need to add corresponding ofnodeput for the three node pointers whose refcount have been incremented by offindnodebyname...

UBUNTU-CVE-2022-49617

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: sofsdw: handle errors on card registration If the card registration fails, typically because of deferred probes, the device properties added for headset codecs are not removed, which leads to kernel oopses in driver...