CVE-2024-53120: net/mlx5e: CT: Fix null-ptr-deref in add rule err flow
First published: Mon Dec 02 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: CT: Fix null-ptr-deref in add rule err flow In error flow of mlx5_tc_ct_entry_add_rule(), in case ct_rule_add() callback returns error, zone_rule->attr is used uninitiated. Fix it to use attr which has the needed pointer value. Kernel log: BUG: kernel NULL pointer dereference, address: 0000000000000110 RIP: 0010:mlx5_tc_ct_entry_add_rule+0x2b1/0x2f0 [mlx5_core] … Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x150/0x3e0 ? exc_page_fault+0x74/0x140 ? asm_exc_page_fault+0x22/0x30 ? mlx5_tc_ct_entry_add_rule+0x2b1/0x2f0 [mlx5_core] ? mlx5_tc_ct_entry_add_rule+0x1d5/0x2f0 [mlx5_core] mlx5_tc_ct_block_flow_offload+0xc6a/0xf90 [mlx5_core] ? nf_flow_offload_tuple+0xd8/0x190 [nf_flow_table] nf_flow_offload_tuple+0xd8/0x190 [nf_flow_table] flow_offload_work_handler+0x142/0x320 [nf_flow_table] ? finish_task_switch.isra.0+0x15b/0x2b0 process_one_work+0x16c/0x320 worker_thread+0x28c/0x3a0 ? __pfx_worker_thread+0x10/0x10 kthread+0xb8/0xf0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.14<6.1.119 | |
| Linux Kernel | >=6.2<6.6.63 | |
| Linux Kernel | >=6.7<6.11.10 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| Linux Kernel | =6.12-rc7 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 | |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/882f392d9e3649557e71efd78ae20c86039ffb7c
- https://git.kernel.org/stable/c/0c7c70ff8b696cfedba350411dca736361ef9a0f
- https://git.kernel.org/stable/c/06dc488a593020bd2f006798557d2a32104d8359
- https://git.kernel.org/stable/c/6030f8bd7902e9e276a0edc09bf11979e4e2bc2e
- https://git.kernel.org/stable/c/e99c6873229fe0482e7ceb7d5600e32d623ed9d9
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-53120
- https://nvd.nist.gov/vuln/detail/CVE-2024-53120
- https://launchpad.net/bugs/cve/CVE-2024-53120
- https://security-tracker.debian.org/tracker/CVE-2024-53120
- https://ubuntu.com/security/CVE-2024-53120
- https://git.kernel.org/linus/e99c6873229fe0482e7ceb7d5600e32d623ed9d9
Frequently Asked Questions
What is the severity of CVE-2024-53120?
CVE-2024-53120 is classified with a severity that indicates a potential impact on system stability due to a null pointer dereference in the Linux kernel.
How do I fix CVE-2024-53120?
To fix CVE-2024-53120, update your Linux kernel to a patched version that addresses this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-53120?
CVE-2024-53120 affects multiple versions of the Linux kernel, specifically versions between 5.14 and 6.1.119, 6.2 and 6.6.63, and several release candidates of 6.12.
What systems are vulnerable to CVE-2024-53120?
Systems running vulnerable versions of the Linux kernel, particularly in environments using the mlx5e driver, are at risk for CVE-2024-53120.
Is CVE-2024-53120 remote or local vulnerability?
CVE-2024-53120 is considered a local vulnerability as it requires local access to exploit the null pointer dereference in the affected kernel code.
- agent/title
- agent/type
- agent/first-publish-date
- agent/author
- agent/remedy
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/usn-cve
- source/Ubuntu
- collector/launchpad-cve
- source/Launchpad
- agent/references
- agent/description
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/security-tracker-debian
- source/Debian
- collector/nvd-cve
- vendor/linux
- canonical/linux kernel
- version/linux kernel/5.14
- version/linux kernel/6.2
- version/linux kernel/6.7
- version/linux kernel/6.12-rc1
- version/linux kernel/6.12-rc2
- version/linux kernel/6.12-rc3
- version/linux kernel/6.12-rc4
- version/linux kernel/6.12-rc5
- version/linux kernel/6.12-rc6
- version/linux kernel/6.12-rc7
- package-manager/debian