CVE-2021-47368
published 2024-05-21CVE-2021-47368: In the Linux kernel, the following vulnerability has been resolved: enetc: Fix illegal access when reading affinity_hint irq_set_affinity_hit() stores a…
PriorityP343high8.1CVSS 3.1
AVNACLPRLUINSUCHINAH
EPSS
0.94%
56.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
enetc: Fix illegal access when reading affinity_hint
irq_set_affinity_hit() stores a reference to the cpumask_t
parameter in the irq descriptor, and that reference can be
accessed later from irq_affinity_hint_proc_show(). Since
the cpu_mask parameter passed to irq_set_affinity_hit() has
only temporary storage (it's on the stack memory), later
accesses to it are illegal. Thus reads from the corresponding
procfs affinity_hint file can result in paging request oops.
The issue is fixed by the get_cpu_mask() helper, which provides
a permanent storage for the cpumask_t parameter.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.9-1 (bookworm) | linux 5.14.9-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= d4fd0404c1c95b17880f254ebfee3485693fa8ba < 4c4c3052911b577920353a7646e4883d5da40c28 | 4c4c3052911b577920353a7646e4883d5da40c28 |
| linux | linux | >= d4fd0404c1c95b17880f254ebfee3485693fa8ba < 6c3f1b741c6c2914ea120e3a5790d3e900152f7b | 6c3f1b741c6c2914ea120e3a5790d3e900152f7b |
| linux | linux | >= d4fd0404c1c95b17880f254ebfee3485693fa8ba < 6f329d9da2a5ae032fcde800a99b118124ed5270 | 6f329d9da2a5ae032fcde800a99b118124ed5270 |
| linux | linux | >= d4fd0404c1c95b17880f254ebfee3485693fa8ba < 7237a494decfa17d0b9d0076e6cee3235719de90 | 7237a494decfa17d0b9d0076e6cee3235719de90 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.70-1 | 5.10.70-1 |
| linux | linux_kernel | >= 0 < 5.14.9-1 | 5.14.9-1 |
| linux | linux_kernel | >= 0 < 5.14.9-1 | 5.14.9-1 |
| linux | linux_kernel | >= 0 < 5.14.9-1 | 5.14.9-1 |
| linux | linux_kernel | >= 5.1 < 5.4.150 | 5.4.150 |
| linux | linux_kernel | >= 5.11 < 5.14.9 | 5.14.9 |
| linux | linux_kernel | >= 5.5 < 5.10.70 | 5.10.70 |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv8.1HIGH
vendor_debian8.1HIGH
vendor_redhat8.1HIGH
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Red Hat
kernel: enetc: Fix illegal access when reading affinity_hint
vendor_redhat·2024-05-21·CVSS 8.1
CVE-2021-47368 [HIGH] CWE-99 kernel: enetc: Fix illegal access when reading affinity_hint
kernel: enetc: Fix illegal access when reading affinity_hint
In the Linux kernel, the following vulnerability has been resolved:
enetc: Fix illegal access when reading affinity_hint
irq_set_affinity_hit() stores a reference to the cpumask_t
parameter in the irq descriptor, and that reference can be
accessed later from irq_affinity_hint_proc_show(). Since
the cpu_mask parameter passed to irq_set_affinity_hit() has
only temporary storage (it's on the stack memory), later
accesses to it are illegal. Thus reads from the corresponding
procfs affinity_hint file can result in paging request oops.
The issue is fixed by the get_cpu_mask() helper, which provides
a permanent storage for the cpumask_t parameter.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat En
Debian
CVE-2021-47368: linux - In the Linux kernel, the following vulnerability has been resolved: enetc: Fix ...
vendor_debian·2021·CVSS 8.1
CVE-2021-47368 [HIGH] CVE-2021-47368: linux - In the Linux kernel, the following vulnerability has been resolved: enetc: Fix ...
In the Linux kernel, the following vulnerability has been resolved: enetc: Fix illegal access when reading affinity_hint irq_set_affinity_hit() stores a reference to the cpumask_t parameter in the irq descriptor, and that reference can be accessed later from irq_affinity_hint_proc_show(). Since the cpu_mask parameter passed to irq_set_affinity_hit() has only temporary storage (it's on the stack memory), later accesses to it are illegal. Thus reads from the corresponding procfs affinity_hint file can result in paging request oops. The issue is fixed by the get_cpu_mask() helper, which provides a permanent storage for the cpumask_t parameter.
Scope: local
bookworm: resolved (fixed in 5.14.9-1)
bullseye: resolved (fixed in 5.10.70-1)
forky: resolved (fixed in 5.14.9-1)
sid: resolved (fixed in
GHSA
GHSA-7hrf-mgqx-vhg4: In the Linux kernel, the following vulnerability has been resolved:
enetc: Fix illegal access when reading affinity_hint
irq_set_affinity_hit() stor
ghsa_unreviewed·2024-05-21
CVE-2021-47368 [HIGH] CWE-400 GHSA-7hrf-mgqx-vhg4: In the Linux kernel, the following vulnerability has been resolved:
enetc: Fix illegal access when reading affinity_hint
irq_set_affinity_hit() stor
In the Linux kernel, the following vulnerability has been resolved:
enetc: Fix illegal access when reading affinity_hint
irq_set_affinity_hit() stores a reference to the cpumask_t
parameter in the irq descriptor, and that reference can be
accessed later from irq_affinity_hint_proc_show(). Since
the cpu_mask parameter passed to irq_set_affinity_hit() has
only temporary storage (it's on the stack memory), later
accesses to it are illegal. Thus reads from the corresponding
procfs affinity_hint file can result in paging request oops.
The issue is fixed by the get_cpu_mask() helper, which provides
a permanent storage for the cpumask_t parameter.
OSV
CVE-2021-47368: In the Linux kernel, the following vulnerability has been resolved: enetc: Fix illegal access when reading affinity_hint irq_set_affinity_hit() stores
osv·2024-05-21·CVSS 8.1
CVE-2021-47368 [HIGH] CVE-2021-47368: In the Linux kernel, the following vulnerability has been resolved: enetc: Fix illegal access when reading affinity_hint irq_set_affinity_hit() stores
In the Linux kernel, the following vulnerability has been resolved: enetc: Fix illegal access when reading affinity_hint irq_set_affinity_hit() stores a reference to the cpumask_t parameter in the irq descriptor, and that reference can be accessed later from irq_affinity_hint_proc_show(). Since the cpu_mask parameter passed to irq_set_affinity_hit() has only temporary storage (it's on the stack memory), later accesses to it are illegal. Thus reads from the corresponding procfs affinity_hint file can result in paging request oops. The issue is fixed by the get_cpu_mask() helper, which provides a permanent storage for the cpumask_t parameter.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4c4c3052911b577920353a7646e4883d5da40c28https://git.kernel.org/stable/c/6c3f1b741c6c2914ea120e3a5790d3e900152f7bhttps://git.kernel.org/stable/c/6f329d9da2a5ae032fcde800a99b118124ed5270https://git.kernel.org/stable/c/7237a494decfa17d0b9d0076e6cee3235719de90https://git.kernel.org/stable/c/4c4c3052911b577920353a7646e4883d5da40c28https://git.kernel.org/stable/c/6c3f1b741c6c2914ea120e3a5790d3e900152f7bhttps://git.kernel.org/stable/c/6f329d9da2a5ae032fcde800a99b118124ed5270https://git.kernel.org/stable/c/7237a494decfa17d0b9d0076e6cee3235719de90
2024-05-21
Published