CVE-2024-35900 Affecting kernel-rt-trace-devel package, versions *
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-6927784
- published 20 May 2024
- disclosed 19 May 2024
How to fix?
There is no fixed version for Centos:7 kernel-rt-trace-devel.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: reject new basechain after table flag update
When dormant flag is toggled, hooks are disabled in the commit phase by iterating over current chains in table (existing and new).
The following configuration allows for an inconsistent state:
add table x add chain x y { type filter hook input priority 0; } add table x { flags dormant; } add chain x w { type filter hook input priority 1; }
which triggers the following warning when trying to unregister chain w which is already unregistered.
[ 127.322252] WARNING: CPU: 7 PID: 1211 at net/netfilter/core.c:50 1 __nf_unregister_net_hook+0x21a/0x260 [...] [ 127.322519] Call Trace: [ 127.322521] <TASK> [ 127.322524] ? __warn+0x9f/0x1a0 [ 127.322531] ? __nf_unregister_net_hook+0x21a/0x260 [ 127.322537] ? report_bug+0x1b1/0x1e0 [ 127.322545] ? handle_bug+0x3c/0x70 [ 127.322552] ? exc_invalid_op+0x17/0x40 [ 127.322556] ? asm_exc_invalid_op+0x1a/0x20 [ 127.322563] ? kasan_save_free_info+0x3b/0x60 [ 127.322570] ? __nf_unregister_net_hook+0x6a/0x260 [ 127.322577] ? __nf_unregister_net_hook+0x21a/0x260 [ 127.322583] ? __nf_unregister_net_hook+0x6a/0x260 [ 127.322590] ? __nf_tables_unregister_hook+0x8a/0xe0 [nf_tables] [ 127.322655] nft_table_disable+0x75/0xf0 [nf_tables] [ 127.322717] nf_tables_commit+0x2571/0x2620 [nf_tables]
References
- https://access.redhat.com/security/cve/CVE-2024-35900
- https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab
- https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe15493a7
- https://git.kernel.org/stable/c/745cf6a843896cdac8766c74379300ed73c78830
- https://git.kernel.org/stable/c/7b6fba6918714afee3e17796113ccab636255c7b
- https://git.kernel.org/stable/c/8ba81dca416adf82fc5a2a23abc1a8cc02ad32fb
- https://git.kernel.org/stable/c/994209ddf4f430946f6247616b2e33d179243769
- https://git.kernel.org/stable/c/e95bb4cba94c018be24b11f017d1c55dd6cda31a