Описание
In the Linux kernel, the following vulnerability has been resolved:
comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large
The handling of the COMEDI_INSNLIST ioctl allocates a kernel buffer to
hold the array of struct comedi_insn, getting the length from the
n_insns member of the struct comedi_insnlist supplied by the user.
The allocation will fail with a WARNING and a stack dump if it is too
large.
Avoid that by failing with an -EINVAL error if the supplied n_insns
value is unreasonable.
Define the limit on the n_insns value in the MAX_INSNS macro. Set
this to the same value as MAX_SAMPLES (65536), which is the maximum
allowed sum of the values of the member n in the array of struct comedi_insn, and sensible comedi instructions will have an n of at
least 1.
In the Linux kernel, the following vulnerability has been resolved:
comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large
The handling of the COMEDI_INSNLIST ioctl allocates a kernel buffer to
hold the array of struct comedi_insn, getting the length from the
n_insns member of the struct comedi_insnlist supplied by the user.
The allocation will fail with a WARNING and a stack dump if it is too
large.
Avoid that by failing with an -EINVAL error if the supplied n_insns
value is unreasonable.
Define the limit on the n_insns value in the MAX_INSNS macro. Set
this to the same value as MAX_SAMPLES (65536), which is the maximum
allowed sum of the values of the member n in the array of struct comedi_insn, and sensible comedi instructions will have an n of at
least 1.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2025-38481
- https://git.kernel.org/stable/c/08ae4b20f5e82101d77326ecab9089e110f224cc
- https://git.kernel.org/stable/c/992d600f284e719242a434166e86c1999649b71c
- https://git.kernel.org/stable/c/c9d3d9667443caafa804cd07940aeaef8e53aa90
- https://git.kernel.org/stable/c/d4c73ce13f5b5a0fe0319f1f352ff602f0ace8e3
- https://git.kernel.org/stable/c/e3b8322cc8081d142ee4c1a43e1d702bdba1ed76
EPSS
CVE ID
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large The handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to hold the array of `struct comedi_insn`, getting the length from the `n_insns` member of the `struct comedi_insnlist` supplied by the user. The allocation will fail with a WARNING and a stack dump if it is too large. Avoid that by failing with an `-EINVAL` error if the supplied `n_insns` value is unreasonable. Define the limit on the `n_insns` value in the `MAX_INSNS` macro. Set this to the same value as `MAX_SAMPLES` (65536), which is the maximum allowed sum of the values of the member `n` in the array of `struct comedi_insn`, and sensible comedi instructions will have an `n` of at least 1.
In the Linux kernel, the following vulnerability has been resolved: comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large The handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to hold the array of `struct comedi_insn`, getting the length from the `n_insns` member of the `struct comedi_insnlist` supplied by the user. The allocation will fail with a WARNING and a stack dump if it is too large. Avoid that by failing with an `-EINVAL` error if the supplied `n_insns` value is unreasonable. Define the limit on the `n_insns` value in the `MAX_INSNS` macro. Set this to the same value as `MAX_SAMPLES` (65536), which is the maximum allowed sum of the values of the member `n` in the array of `struct comedi_insn`, and sensible comedi instructions will have an `n` of at least 1.
In the Linux kernel, the following vulnerability has been resolved: comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large The handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to hold the array of `struct comedi_insn`, getting the length from the `n_insns` member of the `struct comedi_insnlist` supplied by the user. The allocation will fail with a WARNING and a stack dump if it is too large. Avoid that by failing with an `-EINVAL` error if the supplied `n_insns` value is unreasonable. Define the limit on the `n_insns` value in the `MAX_INSNS` macro. Set this to the same value as `MAX_SAMPLES` (65536), which is the maximum allowed sum of the values of the member `n` in the array of `struct comedi_insn`, and sensible comedi instructions will have an `n` of at least 1.
In the Linux kernel, the following vulnerability has been resolved: c ...
Уязвимость функции COMEDI_INSNLIST() ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS