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CVE-2022-49555— Bluetooth: hci_qca: Use del_timer_sync() before freeing

CVSS 7.8 · High EPSS 0.27% · P19

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux0ff252c1976da5d80db1377eb39b551931e61826< 4989bb03342941f2b730b37dfa38bce27b543661affected
0ff252c1976da5d80db1377eb39b551931e61826< db03727b4bbbbb36e6ef4cb655c670eefb6448e9affected
0ff252c1976da5d80db1377eb39b551931e61826< 37d17f63d085d601011964ade7371aeebeb6ed4baffected
0ff252c1976da5d80db1377eb39b551931e61826< 2717654ae022e6ea959a4b7b762702fe1a4690c2affected
0ff252c1976da5d80db1377eb39b551931e61826< 72ef98445aca568a81c2da050532500a8345ad3aaffected
4.3affected
< 4.3unaffected
5.10.120≤ 5.10.*unaffected
… +4 more rows
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I. Basic Information for CVE-2022-49555

Vulnerability Information
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Vulnerability Title
Bluetooth: hci_qca: Use del_timer_sync() before freeing
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: Use del_timer_sync() before freeing While looking at a crash report on a timer list being corrupted, which usually happens when a timer is freed while still active. This is commonly triggered by code calling del_timer() instead of del_timer_sync() just before freeing. One possible culprit is the hci_qca driver, which does exactly that. Eric mentioned that wake_retrans_timer could be rearmed via the work queue, so also move the destruction of the work queue before del_timer_sync().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在释放前未使用del_timer_sync()。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0ff252c1976da5d80db1377eb39b551931e61826 ~ 4989bb03342941f2b730b37dfa38bce27b543661 -
LinuxLinux 4.3 -

II. Public POCs for CVE-2022-49555

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III. Intelligence Information for CVE-2022-49555

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Patches & Fixes for CVE-2022-49555 (5)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-494189.8 CRITICALNFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-494079.8 CRITICALdlm: fix plock invalid read
CVE-2022-493629.8 CRITICALNFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-493569.8 CRITICALSUNRPC: Trap RDMA segment overflows
CVE-2022-495619.8 CRITICALnetfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-492809.8 CRITICALNFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-492609.8 CRITICALcrypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-492019.8 CRITICALibmvnic: fix race between xmit and reset
CVE-2022-490939.8 CRITICALskbuff: fix coalescing for page_pool fragment recycling
CVE-2022-491949.8 CRITICALnet: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-491499.8 CRITICALrxrpc: Fix call timer start racing with call destruction
CVE-2022-490949.8 CRITICALnet/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-490589.1 CRITICALcifs: potential buffer overflow in handling symlinks
CVE-2022-492388.8 HIGHath11k: free peer for station when disconnect from AP for QCA6390/WCN6855
CVE-2022-495198.8 HIGHath10k: skip ath10k_halt during suspend for driver state RESTARTING
CVE-2022-495358.8 HIGHscsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-495008.8 HIGHwl1251: dynamically allocate memory used for DMA
CVE-2022-493288.8 HIGHmt76: fix use-after-free by removing a non-RCU wcid pointer
CVE-2022-494798.8 HIGHmt76: fix tx status related use-after-free race on station removal
CVE-2022-491148.8 HIGHscsi: libfc: Fix use after free in fc_exch_abts_resp()

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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