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CVE-2024-26897— wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel存在安全漏洞，该漏洞源于在 ath9k 驱动程序初始化完成之前设备就暴露给 USB 子系统。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 78c8397132dd4735ac6a7b5a651302f0b9f264ad< 1bc5461a21c56a36e2a7d81e152b90ce019a3905 affected
735aefae7b68025cd04c482a940c0f6fc6797a63< f8ff4b4df71e87f609be0cc37d92e918107f9b90 affected
8b3046abc99eefe11438090bcc4ec3a3994b55d0< 74d0639261dd795dce958d1b14815bdcbb48a715 affected
8b3046abc99eefe11438090bcc4ec3a3994b55d0< a015fbf698c8957aa5fbeefc5c59dd2cf3107298 affected
8b3046abc99eefe11438090bcc4ec3a3994b55d0< ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 affected
8b3046abc99eefe11438090bcc4ec3a3994b55d0< 4afa0246656d5680c8a4c3fb37ba6570c4ab819b affected
8b3046abc99eefe11438090bcc4ec3a3994b55d0< 24355fcb0d4cbcb6ddda262596558e8cfba70f11 affected
7bbc1a50a7963f14048f0e54b0b73159f86d4ea3 affected
… +12 more rows
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I. Basic Information for CVE-2024-26897

Vulnerability Information
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Vulnerability Title
wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete The ath9k_wmi_event_tasklet() used in ath9k_htc assumes that all the data structures have been fully initialised by the time it runs. However, because of the order in which things are initialised, this is not guaranteed to be the case, because the device is exposed to the USB subsystem before the ath9k driver initialisation is completed. We already committed a partial fix for this in commit: 8b3046abc99e ("ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet()") However, that commit only aborted the WMI_TXSTATUS_EVENTID command in the event tasklet, pairing it with an "initialisation complete" bit in the TX struct. It seems syzbot managed to trigger the race for one of the other commands as well, so let's just move the existing synchronisation bit to cover the whole tasklet (setting it at the end of ath9k_htc_probe_device() instead of inside ath9k_tx_init()).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel存在安全漏洞，该漏洞源于在 ath9k 驱动程序初始化完成之前设备就暴露给 USB 子系统。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 78c8397132dd4735ac6a7b5a651302f0b9f264ad ~ 1bc5461a21c56a36e2a7d81e152b90ce019a3905 -
Linux Linux 5.17 -

II. Public POCs for CVE-2024-26897

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III. Intelligence Information for CVE-2024-26897

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Mailing List Discussions for CVE-2024-26897 (1)

Other References for CVE-2024-26897 (6)

Same Patch Batch · Linux · 2024-04-17 · 100 CVEs total

CVE-2024-26877 9.8 CRITICAL crypto: xilinx - call finalize with bh disabled
CVE-2024-26853 9.8 CRITICAL igc: avoid returning frame twice in XDP_REDIRECT
CVE-2024-26828 9.4 CRITICAL cifs: fix underflow in parse_server_interfaces()
CVE-2024-26856 8.8 HIGH net: sparx5: Fix use after free inside sparx5_del_mact_entry
CVE-2024-26822 8.7 HIGH smb: client: set correct id, uid and cruid for multiuser automounts
CVE-2024-26830 8.4 HIGH i40e: Do not allow untrusted VF to remove administratively set MAC
CVE-2024-26914 7.8 HIGH drm/amd/display: fix incorrect mpc_combine array size
CVE-2024-26898 7.8 HIGH aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
CVE-2024-26852 7.8 HIGH net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
CVE-2024-26895 7.8 HIGH wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces
CVE-2024-26890 7.8 HIGH Bluetooth: btrtl: fix out of bounds memory access
CVE-2024-26864 7.8 HIGH tcp: Fix refcnt handling in __inet_hash_connect().
CVE-2024-26865 7.8 HIGH rds: tcp: Fix use-after-free of net in reqsk_timer_handler().
CVE-2024-26869 7.8 HIGH f2fs: fix to truncate meta inode pages forcely
CVE-2024-26870 7.8 HIGH NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
CVE-2024-26885 7.8 HIGH bpf: Fix DEVMAP_HASH overflow check on 32-bit arches
CVE-2024-26872 7.8 HIGH RDMA/srpt: Do not register event handler until srpt device is fully setup
CVE-2024-26884 7.8 HIGH bpf: Fix hashtab overflow check on 32-bit arches
CVE-2024-26883 7.8 HIGH bpf: Fix stackmap overflow check on 32-bit arches
CVE-2024-26880 7.8 HIGH dm: call the resume method on internal suspend

Showing top 20 of 100 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26897

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