CVE-2022-49699

In the Linux kernel, the following vulnerability has been resolved: filemap: Handle sibling entries in filemapgetreadbatch If a read races with an invalidation followed by another read, it is possible for a folio to be replaced with a higher-order folio. If that happens, we'll see a sibling entry...

CVE-2022-49699

CVE-2022-49699 : In the Linux kernel, a race in filemap_get_read_batch() between reads and invalidation can replace a folio with a higher-order folio, causing a NULL pointer dereference while holding the RCU read lock. The patch handles the race by returning early; the next call will locate the n...

CVE-2022-49699 filemap: Handle sibling entries in filemap_get_read_batch()

In the Linux kernel, the following vulnerability has been resolved: filemap: Handle sibling entries in filemapgetreadbatch If a read races with an invalidation followed by another read, it is possible for a folio to be replaced with a higher-order folio. If that happens, we'll see a sibling entry...

CVE-2022-49607 perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix data race between perfeventsetoutput and perfmmapclose Yang Jihing reported a race between perfeventsetoutput and perfmmapclose: CPU1 CPU2 perfmmapclosee2 if atomicdecandtest&e2-rb-mmapcount // 1 - 0 detachrest =...

CVE-2022-49554 zsmalloc: fix races between asynchronous zspage free and page migration

In the Linux kernel, the following vulnerability has been resolved: zsmalloc: fix races between asynchronous zspage free and page migration The asynchronous zspage free worker tries to lock a zspage's entire page list without defending against page migration. Since pages which haven't yet been...

CVE-2022-49547 btrfs: fix deadlock between concurrent dio writes when low on free data space

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free data space When reserving data space for a direct IO write we can end up deadlocking if we have multiple tasks attempting a write to the same file range, there ar...

CVE-2022-49538 ALSA: jack: Access input_dev under mutex

In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access inputdev under mutex It is possible when using ASoC that inputdev is unregistered while calling sndjackreport, which causes NULL pointer dereference. In order to prevent this serialize access to inputdev using...

CVE-2022-49538

In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access inputdev under mutex It is possible when using ASoC that inputdev is unregistered while calling sndjackreport, which causes NULL pointer dereference. In order to prevent this serialize access to inputdev using...

CVE-2022-49538

CVE-2022-49538 affects the Linux kernel’s ALSA jack path in ASoC. The issue arises when input_dev is unregistered while snd_jack_report is called, potentially causing a NULL pointer dereference. The documented fix is to serialize access to input_dev using a mutex. The connected sources confirm th...

CVE-2022-49538 ALSA: jack: Access input_dev under mutex

In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access inputdev under mutex It is possible when using ASoC that inputdev is unregistered while calling sndjackreport, which causes NULL pointer dereference. In order to prevent this serialize access to inputdev using...

CVE-2022-49536 scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock During stress I/O tests with 500+ vports, hard LOCKUP call traces are observed. CPU A: nativequeuedspinlockslowpath+0x192 rawspinlockirqsave+0x32 lpfchandlefcperr+0x4...

CVE-2022-49490 drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5piperelease when deadlock is detected mdp5getglobalstate runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5piperelease doesn't check for if an error is...

CVE-2022-49446

In the Linux kernel, the following vulnerability has been resolved: nvdimm: Fix firmware activation deadlock scenarios Lockdep reports the following deadlock scenarios for CXL root device power-management, deviceprepare, operations, and deviceshutdown operations for 'ndregion' devices: Chain exis...

CVE-2022-49441 tty: fix deadlock caused by calling printk() under tty_port->lock

In the Linux kernel, the following vulnerability has been resolved: tty: fix deadlock caused by calling printk under ttyport-lock ptywrite invokes kmalloc which may invoke a normal printk to print failure message. This can cause a deadlock in the scenario reported by syz-bot below: CPU0 CPU1 CPU2...

CVE-2022-49441

In the Linux kernel, the following vulnerability has been resolved: tty: fix deadlock caused by calling printk under ttyport-lock ptywrite invokes kmalloc which may invoke a normal printk to print failure message. This can cause a deadlock in the scenario reported by syz-bot below: CPU0 CPU1 CPU2...

CVE-2022-49441

CVE-2022-49441 relates to a Linux kernel deadlock in tty handling. The root cause is a potential deadlock when kmalloc() path could trigger a printk() while holding tty_port->lock, enabling a cycle with console ownership locks. The described failing scenario involves multiple CPUs acquiring po...

CVE-2022-49434 PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()

In the Linux kernel, the following vulnerability has been resolved: PCI: Avoid pcidevlock AB/BA deadlock with sriovnumvfsstore The sysfs sriovnumvfsstore path acquires the device lock before the config space access lock: sriovnumvfsstore devicelock A 1 acquire device lock sriovconfigure...

CVE-2022-49434

In the Linux kernel, the following vulnerability has been resolved: PCI: Avoid pcidevlock AB/BA deadlock with sriovnumvfsstore The sysfs sriovnumvfsstore path acquires the device lock before the config space access lock: sriovnumvfsstore devicelock A 1 acquire device lock sriovconfigure...

CVE-2022-49433 RDMA/hfi1: Prevent use of lock before it is initialized

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Prevent use of lock before it is initialized If there is a failure during probe of hfi1 before the sdmamaplock is initialized, the call to hfi1freedevdata will attempt to use a lock that has not been initialized. If th...

CVE-2022-49433

The CVE-2022-49433 entry is confirmed with concrete details in connected advisories: in the Linux kernel RDMA/hfi1 driver, a path may call hfi1_free_devdata() with sdma_map_lock uninitialized if probe of hfi1 fails before sdma_map_lock is set up. This could lead to locking operations being perfor...