CVE-2022-48872
published 2024-08-21CVE-2022-48872: In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between…
PriorityP429high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
EPSS
0.24%
15.5th percentile
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix use-after-free race condition for maps
It is possible that in between calling fastrpc_map_get() until
map->fl->lock is taken in fastrpc_free_map(), another thread can call
fastrpc_map_lookup() and get a reference to a map that is about to be
deleted.
Rewrite fastrpc_map_get() to only increase the reference count of a map
if it's non-zero. Propagate this to callers so they can know if a map is
about to be deleted.
Fixes this warning:
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate
...
Call trace:
refcount_warn_saturate
[fastrpc_map_get inlined]
[fastrpc_map_lookup inlined]
fastrpc_map_create
fastrpc_internal_invoke
fastrpc_device_ioctl
__arm64_sys_ioctl
invoke_syscall
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.8-1 (bookworm) | linux 6.1.8-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 556dfdb226ce1e5231d8836159b23f8bb0395bf4 | 556dfdb226ce1e5231d8836159b23f8bb0395bf4 |
| linux | linux | >= c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < b171d0d2cf1b8387c72c8d325c5d5746fa271e39 | b171d0d2cf1b8387c72c8d325c5d5746fa271e39 |
| linux | linux | >= c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 61a0890cb95afec5c8a2f4a879de2b6220984ef1 | 61a0890cb95afec5c8a2f4a879de2b6220984ef1 |
| linux | linux | >= c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 079c78c68714f7d8d58e66c477b0243b31806907 | 079c78c68714f7d8d58e66c477b0243b31806907 |
| linux | linux | >= c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 96b328d119eca7563c1edcc4e1039a62e6370ecb | 96b328d119eca7563c1edcc4e1039a62e6370ecb |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.8-1 | 6.1.8-1 |
| linux | linux_kernel | >= 0 < 6.1.8-1 | 6.1.8-1 |
| linux | linux_kernel | >= 0 < 6.1.8-1 | 6.1.8-1 |
| linux | linux_kernel | >= 5.1 < 5.4.230 | 5.4.230 |
| linux | linux_kernel | >= 5.11 < 5.15.90 | 5.15.90 |
| linux | linux_kernel | >= 5.16 < 6.2 | 6.2 |
| linux | linux_kernel | >= 5.5 < 5.10.165 | 5.10.165 |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.0HIGH
vendor_debian7.0HIGH
vendor_redhat7.0HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
kernel: misc: fastrpc: Fix use-after-free race condition for maps
vendor_redhat·2024-08-21·CVSS 7.0
CVE-2022-48872 [HIGH] CWE-416 kernel: misc: fastrpc: Fix use-after-free race condition for maps
kernel: misc: fastrpc: Fix use-after-free race condition for maps
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix use-after-free race condition for maps
It is possible that in between calling fastrpc_map_get() until
map->fl->lock is taken in fastrpc_free_map(), another thread can call
fastrpc_map_lookup() and get a reference to a map that is about to be
deleted.
Rewrite fastrpc_map_get() to only increase the reference count of a map
if it's non-zero. Propagate this to callers so they can know if a map is
about to be deleted.
Fixes this warning:
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate
...
Call trace:
refcount_warn_saturate
[fastrpc_map_get inlined]
[fastrpc_map_lookup inlined]
f
Debian
CVE-2022-48872: linux - In the Linux kernel, the following vulnerability has been resolved: misc: fastr...
vendor_debian·2022·CVSS 7.0
CVE-2022-48872 [HIGH] CVE-2022-48872: linux - In the Linux kernel, the following vulnerability has been resolved: misc: fastr...
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between calling fastrpc_map_get() until map->fl->lock is taken in fastrpc_free_map(), another thread can call fastrpc_map_lookup() and get a reference to a map that is about to be deleted. Rewrite fastrpc_map_get() to only increase the reference count of a map if it's non-zero. Propagate this to callers so they can know if a map is about to be deleted. Fixes this warning: refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate ... Call trace: refcount_warn_saturate [fastrpc_map_get inlined] [fastrpc_map_lookup inlined] fastrpc_map_create fastrpc_internal_invoke fastrpc_device_ioctl __ar
GHSA
GHSA-3j3g-6r9w-9pc8: In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix use-after-free race condition for maps
It is possible that in
ghsa_unreviewed·2024-08-21
CVE-2022-48872 [HIGH] CWE-416 GHSA-3j3g-6r9w-9pc8: In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix use-after-free race condition for maps
It is possible that in
In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix use-after-free race condition for maps
It is possible that in between calling fastrpc_map_get() until
map->fl->lock is taken in fastrpc_free_map(), another thread can call
fastrpc_map_lookup() and get a reference to a map that is about to be
deleted.
Rewrite fastrpc_map_get() to only increase the reference count of a map
if it's non-zero. Propagate this to callers so they can know if a map is
about to be deleted.
Fixes this warning:
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate
...
Call trace:
refcount_warn_saturate
[fastrpc_map_get inlined]
[fastrpc_map_lookup inlined]
fastrpc_map_create
fastrpc_internal_invoke
fastrpc_device_ioctl
OSV
CVE-2022-48872: In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in b
osv·2024-08-21·CVSS 7.0
CVE-2022-48872 [HIGH] CVE-2022-48872: In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in b
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between calling fastrpc_map_get() until map->fl->lock is taken in fastrpc_free_map(), another thread can call fastrpc_map_lookup() and get a reference to a map that is about to be deleted. Rewrite fastrpc_map_get() to only increase the reference count of a map if it's non-zero. Propagate this to callers so they can know if a map is about to be deleted. Fixes this warning: refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate ... Call trace: refcount_warn_saturate [fastrpc_map_get inlined] [fastrpc_map_lookup inlined] fastrpc_map_create fastrpc_internal_invoke fastrpc_device_ioctl __ar
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/079c78c68714f7d8d58e66c477b0243b31806907https://git.kernel.org/stable/c/556dfdb226ce1e5231d8836159b23f8bb0395bf4https://git.kernel.org/stable/c/61a0890cb95afec5c8a2f4a879de2b6220984ef1https://git.kernel.org/stable/c/96b328d119eca7563c1edcc4e1039a62e6370ecbhttps://git.kernel.org/stable/c/b171d0d2cf1b8387c72c8d325c5d5746fa271e39
2024-08-21
Published