cbcvebase.
CVE-2024-26595
published 2024-02-23

CVE-2024-26595: In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path When calling…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.7th percentile
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

Affected

13 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
debianlinux-6.1< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
linuxlinux
linuxlinux>= 22a677661f5624539d394f681276171f92d714df < 75fa2d8b3c0175b519c99ace54ab8474cfd0077e75fa2d8b3c0175b519c99ace54ab8474cfd0077e
linuxlinux>= 22a677661f5624539d394f681276171f92d714df < 817840d125a370626895df269c50c923b79b0a39817840d125a370626895df269c50c923b79b0a39
linuxlinux>= 22a677661f5624539d394f681276171f92d714df < d0a1efe417c97a1e9b914056ee6b86f1ef75fe1fd0a1efe417c97a1e9b914056ee6b86f1ef75fe1f
linuxlinux>= 22a677661f5624539d394f681276171f92d714df < efeb7dfea8ee10cdec11b6b6ba4e405edbe75809efeb7dfea8ee10cdec11b6b6ba4e405edbe75809
linuxlinux_kernel>= 0 < 6.1.123-16.1.123-1
linuxlinux_kernel>= 0 < 6.6.15-16.6.15-1
linuxlinux_kernel>= 0 < 6.6.15-16.6.15-1
linuxlinux_kernel>= 0 < 4.15.0-233.2454.15.0-233.245
linuxlinux_kernel>= 4.11.0 < 6.6.146.6.14
linuxlinux_kernel>= 6.7.0 < 6.7.26.7.2

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_ubuntu6.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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