CVE-2024-26595 (GCVE-0-2024-26595)

Vulnerability from cvelistv5 – Published: 2024-02-23 14:46 – Updated: 2026-05-11 20:00
VLAI
Title
mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path
Summary
In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path When calling mlxsw_sp_acl_tcam_region_destroy() from an error path after failing to attach the region to an ACL group, we hit a NULL pointer dereference upon 'region->group->tcam' [1]. Fix by retrieving the 'tcam' pointer using mlxsw_sp_acl_to_tcam(). [1] BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] RIP: 0010:mlxsw_sp_acl_tcam_region_destroy+0xa0/0xd0 [...] Call Trace: mlxsw_sp_acl_tcam_vchunk_get+0x88b/0xa20 mlxsw_sp_acl_tcam_ventry_add+0x25/0xe0 mlxsw_sp_acl_rule_add+0x47/0x240 mlxsw_sp_flower_replace+0x1a9/0x1d0 tc_setup_cb_add+0xdc/0x1c0 fl_hw_replace_filter+0x146/0x1f0 fl_change+0xc17/0x1360 tc_new_tfilter+0x472/0xb90 rtnetlink_rcv_msg+0x313/0x3b0 netlink_rcv_skb+0x58/0x100 netlink_unicast+0x244/0x390 netlink_sendmsg+0x1e4/0x440 ____sys_sendmsg+0x164/0x260 ___sys_sendmsg+0x9a/0xe0 __sys_sendmsg+0x7a/0xc0 do_syscall_64+0x40/0xe0 entry_SYSCALL_64_after_hwframe+0x63/0x6b
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-23 16:34 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6665 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 22a677661f5624539d394f681276171f92d714df , < 75fa2d8b3c0175b519c99ace54ab8474cfd0077e (git)
Affected: 22a677661f5624539d394f681276171f92d714df , < 817840d125a370626895df269c50c923b79b0a39 (git)
Affected: 22a677661f5624539d394f681276171f92d714df , < d0a1efe417c97a1e9b914056ee6b86f1ef75fe1f (git)
Affected: 22a677661f5624539d394f681276171f92d714df , < efeb7dfea8ee10cdec11b6b6ba4e405edbe75809 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                "value": "CWE-476"
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            ],
            "source": "nvd@nist.gov",
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          }
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      "product_status:fixed": "150",
      "product_status:known_affected": "150",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26595.json",
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        "dateReserved": "2024-02-19T14:20:24.127Z",
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}



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