CVE-2021-47364
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).
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/8d6a21e4cd6a319b0662cbe4ad6199e276ac776aPatch
- https://git.kernel.org/stable/c/bb509a6ffed2c8b0950f637ab5779aa818ed1596Patch
- https://git.kernel.org/stable/c/f217b6c1e28ed0b353634ce4d92a155b80bd1671Patch
- https://git.kernel.org/stable/c/8d6a21e4cd6a319b0662cbe4ad6199e276ac776aPatch
- https://git.kernel.org/stable/c/bb509a6ffed2c8b0950f637ab5779aa818ed1596Patch
- https://git.kernel.org/stable/c/f217b6c1e28ed0b353634ce4d92a155b80bd1671Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.