CVE-2026-63901 USB: serial: digi_acceleport: fix memory corruption with small endpoints

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digiacceleport: fix memory corruption with small endpoints Add the missing bulk-out buffer size sanity checks to avoid out-of-bounds memory accesses or slab corruption should a malicious device report smaller buffers...

CVE-2026-63900 USB: serial: keyspan: fix missing indat transfer sanity check

In the Linux kernel, the following vulnerability has been resolved: USB: serial: keyspan: fix missing indat transfer sanity check Add the missing sanity check on the size of usa49wg indat transfers to avoid parsing stale or uninitialised slab data...

CVE-2026-63899 USB: serial: mxuport: fix memory corruption with small endpoint

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mxuport: fix memory corruption with small endpoint Make sure that the bulk-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption should a malicious device report a smaller size...

CVE-2026-63898 USB: serial: mct_u232: fix memory corruption with small endpoint

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mctu232: fix memory corruption with small endpoint The driver overrides the maximum transfer size for a specific device which only accepts 16 byte packets for its 32 byte bulk-out endpoint. Make sure to never increas...

CVE-2026-63897 USB: serial: mct_u232: fix missing interrupt-in transfer sanity check

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mctu232: fix missing interrupt-in transfer sanity check Add the missing sanity check on the size of interrupt-in transfers to avoid parsing stale or uninitialised slab data and leaking it to user space...

CVE-2026-63896 usb: gadget: composite: fix integer underflow in WebUSB GET_URL handling

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix integer underflow in WebUSB GETURL handling The WebUSB GETURL handler in compositesetup narrows landingpagelength to fit the host-supplied wLength using landingpagelength = wlength -...

CVE-2026-63895 usb: gadget: f_fs: copy only received bytes on short ep0 read

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: copy only received bytes on short ep0 read ffsep0read allocates its control-OUT data buffer with kmalloc not kzalloc at the Length value from the Setup packet, then copies that full len to userspace regardless o...

CVE-2026-63893 thunderbolt: property: Reject u32 wrap in tb_property_entry_valid()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject u32 wrap in tbpropertyentryvalid entry-value is u32 and entry-length is u16; the sum is performed in u32 and wraps. A malicious XDomain peer can pick value = 0xffffff00, length = 0x100 so the sum...

CVE-2026-63894 usb: gadget: f_fs: serialize DMABUF cancel against request completion

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion ffsepfiledmabufiocomplete calls usbepfreerequest on the completed request but leaves priv-req, the back-pointer that ffsdmabuftransfer set on submission, pointi...

CVE-2026-63892 thunderbolt: property: Reject dir_len < 4 to prevent size_t underflow

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject dirlen length u16 widened to sizet. Two distinct OOB conditions follow when entry-length uuid, ... which always reads 4 dwords from diroffset. tbpropertyentryvalid only enforces diroffset +...

CVE-2026-63891 thunderbolt: property: Cap recursion depth in __tb_property_parse_dir()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891 thunderbolt: property: Cap recursion depth in __tb_property_parse_dir()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63890 scsi: fcoe: Reject FIP descriptors with zero fip_dlen in CVL walker

In the Linux kernel, the following vulnerability has been resolved: scsi: fcoe: Reject FIP descriptors with zero fipdlen in CVL walker drivers/scsi/fcoe/fcoectlr.c::fcoectlrrecvclrvlink advanced the descriptor cursor by an attacker-supplied fipdlen without ever requiring dlen = sizeofstruct fipde...

EUVD-2026-45664

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891

The CVE affects the Linux kernel Thunderbolt property parser. A crafted peer can trigger a back‑reference loop in DIRECTORY entries, exhausting stack via __tb_property_parse_dir() because the value is used as dir_offset without a depth counter. The fix threads a depth counter through tb_property_...

CVE-2026-63889 scsi: scsi_transport_fc: Widen FPIN pname walker counter to u32

In the Linux kernel, the following vulnerability has been resolved: scsi: scsitransportfc: Widen FPIN pname walker counter to u32 An adjacent Fibre Channel fabric actor that can deliver an FPIN ELS frame to an lpfc or qla2xxx Linux initiator can trigger a non-return in the generic FC transport...

CVE-2026-63888 scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd()

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix CRC overread and double-free in iscsithandletextcmd Two latent bugs in the Text-phase handler, both present since the original LIO integration in commit e48354ce078c "iscsi-target: Add iSCSI fabric suppor...

CVE-2026-63887 scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Bound iscsiencodetextoutput appends to rspbuf iscsiencodetextoutput concatenates "key=value\0" records into login-rspbuf, an 8192-byte kzallocMAXKEYVALUEPAIRS buffer allocated in iscsitallocloginsetupbuffer...

CVE-2026-63886 scsi: target: iscsi: Validate CHAP_R length before base64 decode

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Validate CHAPR length before base64 decode chapservercomputehash allocates clientdigest as kzallocchap-digestsize and then, for BASE64-encoded responses, passes chapr directly to chapbase64decode without...