CVE-2022-48887
published 2024-08-21CVE-2022-48887: In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to avoid…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Remove rcu locks from user resources
User resource lookups used rcu to avoid two extra atomics. Unfortunately
the rcu paths were buggy and it was easy to make the driver crash by
submitting command buffers from two different threads. Because the
lookups never show up in performance profiles replace them with a
regular spin lock which fixes the races in accesses to those shared
resources.
Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and
seen crashes with apps using shared resources.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.7-1 (bookworm) | linux 6.1.7-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e14c02e6b6990e9f6ee18a214a22ac26bae1b25e < 7ac9578e45b20e3f3c0c8eb71f5417a499a7226a | 7ac9578e45b20e3f3c0c8eb71f5417a499a7226a |
| linux | linux | >= e14c02e6b6990e9f6ee18a214a22ac26bae1b25e < a309c7194e8a2f8bd4539b9449917913f6c2cd50 | a309c7194e8a2f8bd4539b9449917913f6c2cd50 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.7-1 | 6.1.7-1 |
| linux | linux_kernel | >= 0 < 6.1.7-1 | 6.1.7-1 |
| linux | linux_kernel | >= 0 < 6.1.7-1 | 6.1.7-1 |
| linux | linux_kernel | >= 4.20 < 6.1.7 | 6.1.7 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: drm/vmwgfx: Remove rcu locks from user resources
vendor_redhat·2024-08-21·CVSS 5.5
CVE-2022-48887 [MEDIUM] CWE-362 kernel: drm/vmwgfx: Remove rcu locks from user resources
kernel: drm/vmwgfx: Remove rcu locks from user resources
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Remove rcu locks from user resources
User resource lookups used rcu to avoid two extra atomics. Unfortunately
the rcu paths were buggy and it was easy to make the driver crash by
submitting command buffers from two different threads. Because the
lookups never show up in performance profiles replace them with a
regular spin lock which fixes the races in accesses to those shared
resources.
Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and
seen crashes with apps using shared resources.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel-rt (Red
Debian
CVE-2022-48887: linux - In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx:...
vendor_debian·2022·CVSS 5.5
CVE-2022-48887 [MEDIUM] CVE-2022-48887: linux - In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx:...
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to avoid two extra atomics. Unfortunately the rcu paths were buggy and it was easy to make the driver crash by submitting command buffers from two different threads. Because the lookups never show up in performance profiles replace them with a regular spin lock which fixes the races in accesses to those shared resources. Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and seen crashes with apps using shared resources.
Scope: local
bookworm: resolved (fixed in 6.1.7-1)
bullseye: open
forky: resolved (fixed in 6.1.7-1)
sid: resolved (fixed in 6.1.7-1)
trixie: resolved (fixed in 6.1.7-1)
GHSA
GHSA-w8v8-pp27-rwcg: In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Remove rcu locks from user resources
User resource lookups used rcu
ghsa_unreviewed·2024-08-21
CVE-2022-48887 [MEDIUM] GHSA-w8v8-pp27-rwcg: In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Remove rcu locks from user resources
User resource lookups used rcu
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: Remove rcu locks from user resources
User resource lookups used rcu to avoid two extra atomics. Unfortunately
the rcu paths were buggy and it was easy to make the driver crash by
submitting command buffers from two different threads. Because the
lookups never show up in performance profiles replace them with a
regular spin lock which fixes the races in accesses to those shared
resources.
Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and
seen crashes with apps using shared resources.
OSV
CVE-2022-48887: In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to
osv·2024-08-21·CVSS 5.5
CVE-2022-48887 [MEDIUM] CVE-2022-48887: In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Remove rcu locks from user resources User resource lookups used rcu to avoid two extra atomics. Unfortunately the rcu paths were buggy and it was easy to make the driver crash by submitting command buffers from two different threads. Because the lookups never show up in performance profiles replace them with a regular spin lock which fixes the races in accesses to those shared resources. Fixes kernel oops'es in IGT's vmwgfx execution_buffer stress test and seen crashes with apps using shared resources.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-08-21
Published