CVE-2022-49110
published 2025-02-26CVE-2022-49110: In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning as of commit 4608fdfc07e1 ("netfilter…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.58%
44.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: revisit gc autotuning
as of commit 4608fdfc07e1
("netfilter: conntrack: collect all entries in one cycle")
conntrack gc was changed to run every 2 minutes.
On systems where conntrack hash table is set to large value, most evictions
happen from gc worker rather than the packet path due to hash table
distribution.
This causes netlink event overflows when events are collected.
This change collects average expiry of scanned entries and
reschedules to the average remaining value, within 1 to 60 second interval.
To avoid event overflows, reschedule after each bucket and add a
limit for both run time and number of evictions per run.
If more entries have to be evicted, reschedule and restart 1 jiffy
into the future.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 4.19.206 < 4.20 | 4.20 |
| linux | linux | >= 4608fdfc07e116f9fc0895beb40abad7cdb5ee3d < 58d52743ae85d28c9335c6034d6ce350b8689951 | 58d52743ae85d28c9335c6034d6ce350b8689951 |
| linux | linux | >= 4608fdfc07e116f9fc0895beb40abad7cdb5ee3d < 7cd361d5e6d986c0d4cafb9ceaa803359048ae15 | 7cd361d5e6d986c0d4cafb9ceaa803359048ae15 |
| linux | linux | >= 4608fdfc07e116f9fc0895beb40abad7cdb5ee3d < 592e57591826f3d09c28d755a39ea8e9d13705ad | 592e57591826f3d09c28d755a39ea8e9d13705ad |
| linux | linux | >= 4608fdfc07e116f9fc0895beb40abad7cdb5ee3d < 2cfadb761d3d0219412fd8150faea60c7e863833 | 2cfadb761d3d0219412fd8150faea60c7e863833 |
| linux | linux | >= 5.10.62 < 5.11 | 5.11 |
| linux | linux | >= 5.13.14 < 5.14 | 5.14 |
| linux | linux | >= 5.4.144 < 5.5 | 5.5 |
| linux | linux_kernel | < 5.15.34 | 5.15.34 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 5.16 < 5.16.20 | 5.16.20 |
| linux | linux_kernel | >= 5.17 < 5.17.3 | 5.17.3 |
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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GHSA
GHSA-pv5x-cgg5-p627: In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: revisit gc autotuning
as of commit 4608fdfc07e1
("netfilte
ghsa_unreviewed·2025-09-23
CVE-2022-49110 [MEDIUM] GHSA-pv5x-cgg5-p627: In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: revisit gc autotuning
as of commit 4608fdfc07e1
("netfilte
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: revisit gc autotuning
as of commit 4608fdfc07e1
("netfilter: conntrack: collect all entries in one cycle")
conntrack gc was changed to run every 2 minutes.
On systems where conntrack hash table is set to large value, most evictions
happen from gc worker rather than the packet path due to hash table
distribution.
This causes netlink event overflows when events are collected.
This change collects average expiry of scanned entries and
reschedules to the average remaining value, within 1 to 60 second interval.
To avoid event overflows, reschedule after each bucket and add a
limit for both run time and number of evictions per run.
If more entries have to be evicted, reschedule and restart 1 jiffy
in
OSV
CVE-2022-49110: In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning as of commit 4608fdfc07e1 ("netfilter:
osv·2025-02-26·CVSS 5.5
CVE-2022-49110 [MEDIUM] CVE-2022-49110: In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning as of commit 4608fdfc07e1 ("netfilter:
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning as of commit 4608fdfc07e1 ("netfilter: conntrack: collect all entries in one cycle") conntrack gc was changed to run every 2 minutes. On systems where conntrack hash table is set to large value, most evictions happen from gc worker rather than the packet path due to hash table distribution. This causes netlink event overflows when events are collected. This change collects average expiry of scanned entries and reschedules to the average remaining value, within 1 to 60 second interval. To avoid event overflows, reschedule after each bucket and add a limit for both run time and number of evictions per run. If more entries have to be evicted, reschedule and restart 1 jiffy into the
Red Hat
kernel: netfilter: conntrack: revisit gc autotuning
vendor_redhat·2025-02-26·CVSS 5.5
CVE-2022-49110 [MEDIUM] kernel: netfilter: conntrack: revisit gc autotuning
kernel: netfilter: conntrack: revisit gc autotuning
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: revisit gc autotuning
as of commit 4608fdfc07e1
("netfilter: conntrack: collect all entries in one cycle")
conntrack gc was changed to run every 2 minutes.
On systems where conntrack hash table is set to large value, most evictions
happen from gc worker rather than the packet path due to hash table
distribution.
This causes netlink event overflows when events are collected.
This change collects average expiry of scanned entries and
reschedules to the average remaining value, within 1 to 60 second interval.
To avoid event overflows, reschedule after each bucket and add a
limit for both run time and number of evictions per run.
If more entries have to
Debian
CVE-2022-49110: linux - In the Linux kernel, the following vulnerability has been resolved: netfilter: ...
vendor_debian·2022·CVSS 5.5
CVE-2022-49110 [MEDIUM] CVE-2022-49110: linux - In the Linux kernel, the following vulnerability has been resolved: netfilter: ...
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning as of commit 4608fdfc07e1 ("netfilter: conntrack: collect all entries in one cycle") conntrack gc was changed to run every 2 minutes. On systems where conntrack hash table is set to large value, most evictions happen from gc worker rather than the packet path due to hash table distribution. This causes netlink event overflows when events are collected. This change collects average expiry of scanned entries and reschedules to the average remaining value, within 1 to 60 second interval. To avoid event overflows, reschedule after each bucket and add a limit for both run time and number of evictions per run. If more entries have to be evicted, reschedule and restart 1 jiffy into the
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-02-26
Published