In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compat_insnlist() compat_insnlist()
handles the 32-bit version of the COMEDI_INSNLIST
ioctl (whenwhen CONFIG_COMPAT
is enabled). It allocates memory to temporarily hold an array of struct comedi_insn
converted from the 32-bit version in user space. This memory is only being freed if there is a fault while filling the array, otherwise it is leaked. Add a call to kfree()
to fix the leak.
git.kernel.org/linus/bb509a6ffed2c8b0950f637ab5779aa818ed1596
git.kernel.org/stable/c/8d6a21e4cd6a319b0662cbe4ad6199e276ac776a
git.kernel.org/stable/c/bb509a6ffed2c8b0950f637ab5779aa818ed1596
git.kernel.org/stable/c/f217b6c1e28ed0b353634ce4d92a155b80bd1671
ubuntu.com/security/CVE-2021-47364
www.cve.org/CVERecord?id=CVE-2021-47364