wifi: wilc1000: fix RCU usage in connect path

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Summary

CVECVE-2024-27053
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-01 13:15:50 UTC
Updated2026-05-12 12:16:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix RCU usage in connect path With lockdep enabled, calls to the connect function from cfg802.11 layer lead to the following warning: ============================= WARNING: suspicious RCU usage 6.7.0-rc1-wt+ #333 Not tainted ----------------------------- drivers/net/wireless/microchip/wilc1000/hif.c:386 suspicious rcu_dereference_check() usage! [...] stack backtrace: CPU: 0 PID: 100 Comm: wpa_supplicant Not tainted 6.7.0-rc1-wt+ #333 Hardware name: Atmel SAMA5 unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x34/0x48 dump_stack_lvl from wilc_parse_join_bss_param+0x7dc/0x7f4 wilc_parse_join_bss_param from connect+0x2c4/0x648 connect from cfg80211_connect+0x30c/0xb74 cfg80211_connect from nl80211_connect+0x860/0xa94 nl80211_connect from genl_rcv_msg+0x3fc/0x59c genl_rcv_msg from netlink_rcv_skb+0xd0/0x1f8 netlink_rcv_skb from genl_rcv+0x2c/0x3c genl_rcv from netlink_unicast+0x3b0/0x550 netlink_unicast from netlink_sendmsg+0x368/0x688 netlink_sendmsg from ____sys_sendmsg+0x190/0x430 ____sys_sendmsg from ___sys_sendmsg+0x110/0x158 ___sys_sendmsg from sys_sendmsg+0xe8/0x150 sys_sendmsg from ret_fast_syscall+0x0/0x1c This warning is emitted because in the connect path, when trying to parse target BSS parameters, we dereference a RCU pointer whithout being in RCU critical section. Fix RCU dereference usage by moving it to a RCU read critical section. To avoid wrapping the whole wilc_parse_join_bss_param under the critical section, just use the critical section to copy ies data

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Problem Types: CWE-476 | CWE-476 CWE-476 NULL Pointer Dereference

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac e556006de4ea93abe2b46cba202a2556c544b8b2 git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac b4bbf38c350acb6500cbe667b1e2e68f896e4b38 git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2 git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac 745003b5917b610352f52fe0d11ef658d6471ec2 git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac 4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac 5800ec78775c0cd646f71eb9bf8402fb794807de git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac dd50d3ead6e3707bb0a5df7cc832730c93ace3a7 git Not specified
CNA Linux Linux affected c460495ee072fc01a9b1e8d72c179510418cafac 205c50306acf58a335eb19fa84e40140f4fe814f git Not specified
CNA Linux Linux affected 5.1 Not specified
CNA Linux Linux unaffected 5.1 semver Not specified
CNA Linux Linux unaffected 5.4.273 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.214 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.153 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.83 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.23 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.11 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8.2 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Linux Linux Kernel affected c460495ee072 e556006de4ea custom Not specified
ADP Linux Linux Kernel affected c460495ee072 b4bbf38c350a custom Not specified
ADP Linux Linux Kernel affected c460495ee072 d80fc436751c custom Not specified
ADP Linux Linux Kernel affected c460495ee072 745003b5917b custom Not specified
ADP Linux Linux Kernel affected c460495ee072 4bfd20d5f5c custom Not specified
ADP Linux Linux Kernel affected c460495ee072 5800ec78775c custom Not specified
ADP Linux Linux Kernel affected c460495ee072 dd50d3ead6e3 custom Not specified
ADP Linux Linux Kernel affected c460495ee072 205c50306acf custom Not specified
ADP Linux Linux Kernel unaffected 5.4.273 5.5 custom Not specified
ADP Linux Linux Kernel unaffected 5.15.153 5.16 custom Not specified
ADP Linux Linux Kernel unaffected 6.1.83 6.2 custom Not specified
ADP Linux Linux Kernel unaffected 6.6.23 6.7 custom Not specified
ADP Linux Linux Kernel unaffected 6.7.11 6.8 custom Not specified
ADP Linux Linux Kernel unaffected 6.9 Not specified
ADP Linux Linux Kernel unaffected 5.1 custom Not specified
ADP Linux Linux Kernel affected 5.1 Not specified
ADP Linux Linux Kernel unaffected 5.10.214 5.11 custom Not specified
ADP Linux Linux Kernel unaffected 6.8.2 6.9 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/205c50306acf58a335eb19fa84e40140f4fe814f af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/e556006de4ea93abe2b46cba202a2556c544b8b2 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/b4bbf38c350acb6500cbe667b1e2e68f896e4b38 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/745003b5917b610352f52fe0d11ef658d6471ec2 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/5800ec78775c0cd646f71eb9bf8402fb794807de af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/dd50d3ead6e3707bb0a5df7cc832730c93ace3a7 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
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