CVE-2022-49519
- Source
- https://cve.org/CVERecord?id=CVE-2022-49519
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49519.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49519
- Downstream
CLSA (5)
DEBIAN (1)
RHSA (2)
SUSE (5)
UBUNTU (1)
- Related
- Published
- 2025-02-26T02:13:45Z
- Modified
- 2026-10-20T10:31:15Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ath10k: skip ath10k_halt during suspend for driver state RESTARTING
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ath10k: skip ath10k_halt during suspend for driver state RESTARTING
Double free crash is observed when FW recovery(caused by wmi timeout/crash) is followed by immediate suspend event. The FW recovery is triggered by ath10k_core_restart() which calls driver clean up via ath10k_halt(). When the suspend event occurs between the FW recovery, the restart worker thread is put into frozen state until suspend completes. The suspend event triggers ath10k_stop() which again triggers ath10k_halt() The double invocation of ath10k_halt() causes ath10k_htt_rx_free() to be called twice(Note: ath10k_htt_rx_alloc was not called by restart worker thread because of its frozen state), causing the crash.
To fix this, during the suspend flow, skip call to ath10k_halt() in ath10k_stop() when the current driver state is ATH10K_STATE_RESTARTING. Also, for driver state ATH10K_STATE_RESTARTING, call ath10k_wait_for_suspend() in ath10k_stop(). This is because call to ath10k_wait_for_suspend() is skipped later in [ath10k_halt() > ath10k_core_stop()] for the driver state ATH10K_STATE_RESTARTING.
The frozen restart worker thread will be cancelled during resume when the device comes out of suspend.
Below is the crash stack for reference:
[ 428.469167] ------------[ cut here ]------------ [ 428.469180] kernel BUG at mm/slub.c:4150! [ 428.469193] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 428.469219] Workqueue: events_unbound async_run_entry_fn [ 428.469230] RIP: 0010:kfree+0x319/0x31b [ 428.469241] RSP: 0018:ffffa1fac015fc30 EFLAGS: 00010246 [ 428.469247] RAX: ffffedb10419d108 RBX: ffff8c05262b0000 [ 428.469252] RDX: ffff8c04a8c07000 RSI: 0000000000000000 [ 428.469256] RBP: ffffa1fac015fc78 R08: 0000000000000000 [ 428.469276] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 428.469285] Call Trace: [ 428.469295] ? dma_free_attrs+0x5f/0x7d [ 428.469320] ath10k_core_stop+0x5b/0x6f [ 428.469336] ath10k_halt+0x126/0x177 [ 428.469352] ath10k_stop+0x41/0x7e [ 428.469387] drv_stop+0x88/0x10e [ 428.469410] __ieee80211_suspend+0x297/0x411 [ 428.469441] rdev_suspend+0x6e/0xd0 [ 428.469462] wiphy_suspend+0xb1/0x105 [ 428.469483] ? name_show+0x2d/0x2d [ 428.469490] dpm_run_callback+0x8c/0x126 [ 428.469511] ? name_show+0x2d/0x2d [ 428.469517] __device_suspend+0x2e7/0x41b [ 428.469523] async_suspend+0x1f/0x93 [ 428.469529] async_run_entry_fn+0x3d/0xd1 [ 428.469535] process_one_work+0x1b1/0x329 [ 428.469541] worker_thread+0x213/0x372 [ 428.469547] kthread+0x150/0x15f [ 428.469552] ? pr_cont_work+0x58/0x58 [ 428.469558] ? kthread_blkcg+0x31/0x31
Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49519.json" }- References
-
- https://git.kernel.org/stable/c/5321e5211b5dc873e2e3d0deb749e69ecf4dbfe5
- https://git.kernel.org/stable/c/7eb14cb604f49e58b7cf6faa87961a865a3c8649
- https://git.kernel.org/stable/c/8aa3750986ffcf73e0692db3b40dd3a8e8c0c575
- https://git.kernel.org/stable/c/b72a4aff947ba807177bdabb43debaf2c66bee05
- https://git.kernel.org/stable/c/c2272428090d0d215a3f017cbbbad731c07eee53
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49519.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49519
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc2cac2f74ab4bcf0db0dcf3a612f1e5b52d145c8Fixed8aa3750986ffcf73e0692db3b40dd3a8e8c0c575Fixedc2272428090d0d215a3f017cbbbad731c07eee53Fixed7eb14cb604f49e58b7cf6faa87961a865a3c8649Fixed5321e5211b5dc873e2e3d0deb749e69ecf4dbfe5Fixedb72a4aff947ba807177bdabb43debaf2c66bee05
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.9.2Fixed4.10
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedea23fca0c60045afbbeceef1926893d905eb1b36