ibmasm: fix OOB reads in command_file_write due to missing size checks

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ibmasm: fix heap over-read in ibmasm_send_i2o_message()

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SUSE CVE-2026-46022

In the Linux kernel, the following vulnerability has been resolved: misc: ibmasm: fix OOB MMIO read in ibmasmhandlemouseinterrupt ibmasmhandlemouseinterrupt performs an out-of-bounds MMIO read when the queue reader or writer index from hardware exceeds REMOTEQUEUESIZE 60. A compromised service...

CVE-2026-45994

A flaw was found in the Linux kernel's ibmasm module. This vulnerability, an out-of-bounds read in the commandfilewrite function, allows an attacker to cause the system to read beyond the intended memory boundaries. By manipulating the allocation size and header fields, an attacker can trigger th...

CVE-2026-46022

A flaw was found in the Linux kernel's ibmasm module. A compromised service processor can exploit this by manipulating specific hardware registers, causing the system to read data from an unintended memory location. This out-of-bounds read can lead to a system crash, resulting in a Denial of...

CVE-2026-46064

A flaw was found in the Linux kernel's ibmasm module. A local root user can exploit a heap over-read vulnerability within the ibmasmsendi2omessage function. This vulnerability arises from insufficient validation of user-controlled input sizes, allowing the system to read beyond allocated memory...

EUVD-2026-32290

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix OOB reads in commandfilewrite due to missing size checks The commandfilewrite handler allocates a kernel buffer of exactly count bytes and copies user data into it, but does not validate the buffer against the dot...

CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-46022

In the Linux kernel, the following vulnerability has been resolved: misc: ibmasm: fix OOB MMIO read in ibmasmhandlemouseinterrupt ibmasmhandlemouseinterrupt performs an out-of-bounds MMIO read when the queue reader or writer index from hardware exceeds REMOTEQUEUESIZE 60. A compromised service...

CVE-2026-45994

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix OOB reads in commandfilewrite due to missing size checks The commandfilewrite handler allocates a kernel buffer of exactly count bytes and copies user data into it, but does not validate the buffer against the dot...

CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-46022

In the Linux kernel, the following vulnerability has been resolved: misc: ibmasm: fix OOB MMIO read in ibmasmhandlemouseinterrupt ibmasmhandlemouseinterrupt performs an out-of-bounds MMIO read when the queue reader or writer index from hardware exceeds REMOTEQUEUESIZE 60. A compromised service...

UBUNTU-CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

UBUNTU-CVE-2026-45994

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix OOB reads in commandfilewrite due to missing size checks The commandfilewrite handler allocates a kernel buffer of exactly count bytes and copies user data into it, but does not validate the buffer against the dot...

CVE-2026-45994

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix OOB reads in commandfilewrite due to missing size checks The commandfilewrite handler allocates a kernel buffer of exactly count bytes and copies user data into it, but does not validate the buffer against the dot...

CVE-2026-46064 ibmasm: fix heap over-read in ibmasm_send_i2o_message()

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-46064

CVE-2026-46064 affects the Linux kernel’s ibmasm_send_i2o_message, where the copy size is derived from user-controlled dot_command_header fields and not validated against allocation size. This can let an attacker perform a heap over-read by memcpy_toio(), reaching up to ~65 KB beyond the allocate...

CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-46064 ibmasm: fix heap over-read in ibmasm_send_i2o_message()

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...