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praneethpanasala / linux

Linux kernel variant from Analog Devices; see README.md for details
https://github.com/analogdevicesinc/linux
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CVE-2024-26595 (Medium) detected in linuxlinux-4.19.6 #706

Open mend-bolt-for-github[bot] opened 3 months ago

mend-bolt-for-github[bot] commented 3 months ago

CVE-2024-26595 - Medium Severity Vulnerability

Vulnerable Library - linuxlinux-4.19.6

Apache Software Foundation (ASF)

Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux

Found in HEAD commit: d80c4f847c91020292cb280132b15e2ea147f1a3

Found in base branch: master

Vulnerable Source Files (2)

/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c /drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c

Vulnerability Details

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

Publish Date: 2024-02-23

URL: CVE-2024-26595

CVSS 3 Score Details (5.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.cve.org/CVERecord?id=CVE-2024-26595

Release Date: 2024-02-23

Fix Resolution: v6.6.14,v6.7.2

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