CVE-2026-57434 Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could...

CVE-2026-57434 Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could...

CVE-2026-57434

CVE-2026-57434 affects Nokogiri (Ruby) prior to version 1.19.4. A bug in allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node can cause a NULL pointer dereference, potentially crashing the process. The vulnerability is fixed in 1.19.4. Connected sources (OSV, D...

CVE-2026-57434

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could...

EUVD-2026-39340

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs Why & How dpsdpmessagedebugfswrite dereferences connector-base.state-crtc without checking for NULL. A connector can be connected but not bound to any CRTC e.g...

CVE-2026-53271

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix NULL-deref of opinfo-conn in oplock/lease break notifiers smb2oplockbreaknoti and smb2leasebreaknoti read opinfo-conn into a local with neither READONCE nor a NULL check. Both run from oplockbreak after opinfogetlist h...

CVE-2026-53237

In the Linux kernel, the following vulnerability has been resolved: gpio: mvebu: fix NULL pointer dereference in suspend/resume mvebupwmsuspend and mvebupwmresume are called for all GPIO banks during suspend/resume, but not all banks have PWM functionality. GPIO banks without PWM have mvchip-mvpw...

CVE-2026-53214

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix a potential NPD in cleanupprefixroute addrconfgetprefixroute can return the fib6nullentry sentinel entry which has a NULL fib6table pointer. Therefore, before setting the route's expiration time, check that we are not...

CVE-2026-53220

In the Linux kernel, the following vulnerability has been resolved: netfilter: revalidate bridge ports ebtredirecttg dereferences brportgetrcu return without a NULL check, causing a kernel panic when the bridge port has been removed between the original hook invocation and an NFQUEUE reinject. A...

CVE-2026-53213

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: fix krealloc memory leak Don't just overwrite the original pointer passed to krealloc with its return value without checking latter: MEM = kreallocMEM, SZ, GFP; If krealloc returns NULL, that erases the pointer to the...

CVE-2026-53204

In the Linux kernel, the following vulnerability has been resolved: firmware: stratix10-rsu: Fix NULL deref on rsusendmsg timeout in probe rsusendmsg can return -ETIMEDOUT when waitforcompletioninterruptibletimeout fires while the SMC call is still pending. In stratix10rsuprobe, the error paths f...

CVE-2026-53177

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .errordetected callback,...

CVE-2026-53158

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix NULL pointer dereference in rpmsg callback A NULL pointer dereference was observed on Hawi at boot when the DSP sends a glink message before fastrpcrpmsgprobe has completed initialization: Unable to handle kern...

CVE-2026-53165

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53152

In the Linux kernel, the following vulnerability has been resolved: mmc: dwmmc-rockchip: Add missing private data for very old controllers The really old controllers rk2928, rk3066, rk3188 do not support UHS speeds at all, and thus never handled phase data. For that reason it never had a parsedt...

CVE-2026-53144

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix NULL dereference in getqueueids When usrqueueidarray is NULL and numqueues is non-zero, getqueueids returns NULL. The callers check only ISERR on the return value; since ISERRNULL == false the check passes, and...

CVE-2026-53135

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL deref and buffer over-read in SDP debugfs Why & How dpsdpmessagedebugfswrite dereferences connector-base.state-crtc without checking for NULL. A connector can be connected but not bound to any CRTC e.g...

UBUNTU-CVE-2026-53177

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .errordetected callback,...

UBUNTU-CVE-2026-53163

In the Linux kernel, the following vulnerability has been resolved: locking/rtmutex: Skip removewaiter when waiter is not enqueued syzbot triggered the following splat in removewaiter via FUTEXCMPREQUEUEPI: KASAN: null-ptr-deref in range 0x0000000000000a88-0x0000000000000a8f...

UBUNTU-CVE-2026-53227

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix possible kfreeskb of ERRPTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovsmutex. However, error cleanups still follow the classical...