CVE-2022-48933
published 2024-08-22CVE-2022-48933: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects can be…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
11.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful objects can be updated from the control plane.
The transaction logic allocates a temporary object for this purpose.
The ->init function was called for this object, so plain kfree() leaks
resources. We must call ->destroy function of the object.
nft_obj_destroy does this, but it also decrements the module refcount,
but the update path doesn't increment it.
To avoid special-casing the update object release, do module_get for
the update case too and release it via nft_obj_destroy().
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.16.12-1 (bookworm) | linux 5.16.12-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= d62d0ba97b5803183e70cfded7f7b9da76893bf5 < 53026346a94c43f35c32b18804041bc483271d87 | 53026346a94c43f35c32b18804041bc483271d87 |
| linux | linux | >= d62d0ba97b5803183e70cfded7f7b9da76893bf5 < 7e9880e81d3fd6a43c202f205717485290432826 | 7e9880e81d3fd6a43c202f205717485290432826 |
| linux | linux | >= d62d0ba97b5803183e70cfded7f7b9da76893bf5 < e96e204ee6fa46702f6c94c3c69a09e69e0eac52 | e96e204ee6fa46702f6c94c3c69a09e69e0eac52 |
| linux | linux | >= d62d0ba97b5803183e70cfded7f7b9da76893bf5 < 34bb90e407e3288f610558beaae54ecaa32b11c4 | 34bb90e407e3288f610558beaae54ecaa32b11c4 |
| linux | linux | >= d62d0ba97b5803183e70cfded7f7b9da76893bf5 < dad3bdeef45f81a6e90204bcc85360bb76eccec7 | dad3bdeef45f81a6e90204bcc85360bb76eccec7 |
| linux | linux_kernel | >= 0 < 5.10.103-1 | 5.10.103-1 |
| linux | linux_kernel | >= 0 < 5.16.12-1 | 5.16.12-1 |
| linux | linux_kernel | >= 0 < 5.16.12-1 | 5.16.12-1 |
| linux | linux_kernel | >= 0 < 5.16.12-1 | 5.16.12-1 |
| linux | linux_kernel | >= 5.11 < 5.15.26 | 5.15.26 |
| linux | linux_kernel | >= 5.16 < 5.16.12 | 5.16.12 |
| linux | linux_kernel | >= 5.4 < 5.4.182 | 5.4.182 |
| linux | linux_kernel | >= 5.5 < 5.10.103 | 5.10.103 |
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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OSV
CVE-2022-48933: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects
osv·2024-08-22·CVSS 5.5
CVE-2022-48933 [MEDIUM] CVE-2022-48933: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose. The ->init function was called for this object, so plain kfree() leaks resources. We must call ->destroy function of the object. nft_obj_destroy does this, but it also decrements the module refcount, but the update path doesn't increment it. To avoid special-casing the update object release, do module_get for the update case too and release it via nft_obj_destroy().
GHSA
GHSA-92cr-jqq3-99x4: In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful object
ghsa_unreviewed·2024-08-22
CVE-2022-48933 [MEDIUM] CWE-401 GHSA-92cr-jqq3-99x4: In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful object
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful objects can be updated from the control plane.
The transaction logic allocates a temporary object for this purpose.
The ->init function was called for this object, so plain kfree() leaks
resources. We must call ->destroy function of the object.
nft_obj_destroy does this, but it also decrements the module refcount,
but the update path doesn't increment it.
To avoid special-casing the update object release, do module_get for
the update case too and release it via nft_obj_destroy().
Red Hat
kernel: netfilter: nf_tables: fix memory leak during stateful obj update
vendor_redhat·2024-08-22·CVSS 5.5
CVE-2022-48933 [MEDIUM] CWE-402 kernel: netfilter: nf_tables: fix memory leak during stateful obj update
kernel: netfilter: nf_tables: fix memory leak during stateful obj update
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix memory leak during stateful obj update
stateful objects can be updated from the control plane.
The transaction logic allocates a temporary object for this purpose.
The ->init function was called for this object, so plain kfree() leaks
resources. We must call ->destroy function of the object.
nft_obj_destroy does this, but it also decrements the module refcount,
but the update path doesn't increment it.
To avoid special-casing the update object release, do module_get for
the update case too and release it via nft_obj_destroy().
netfilter in linux kernel allocates temporary objects when updating stateful objcets from the cont
Debian
CVE-2022-48933: linux - In the Linux kernel, the following vulnerability has been resolved: netfilter: ...
vendor_debian·2022·CVSS 5.5
CVE-2022-48933 [MEDIUM] CVE-2022-48933: linux - In the Linux kernel, the following vulnerability has been resolved: netfilter: ...
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose. The ->init function was called for this object, so plain kfree() leaks resources. We must call ->destroy function of the object. nft_obj_destroy does this, but it also decrements the module refcount, but the update path doesn't increment it. To avoid special-casing the update object release, do module_get for the update case too and release it via nft_obj_destroy().
Scope: local
bookworm: resolved (fixed in 5.16.12-1)
bullseye: resolved (fixed in 5.10.103-1)
forky: resolved (fixed in 5.16.12-1)
sid: resolved (fixed in 5.16.12-1)
trixie:
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/34bb90e407e3288f610558beaae54ecaa32b11c4https://git.kernel.org/stable/c/53026346a94c43f35c32b18804041bc483271d87https://git.kernel.org/stable/c/7e9880e81d3fd6a43c202f205717485290432826https://git.kernel.org/stable/c/dad3bdeef45f81a6e90204bcc85360bb76eccec7https://git.kernel.org/stable/c/e96e204ee6fa46702f6c94c3c69a09e69e0eac52
2024-08-22
Published