CVE-2026-46047— net: qrtr: ns: Fix use-after-free in driver remove()
Possible ATT&CK Techniques 1AI
T1211 · Exploitation for StealthAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0c2204a4ad710d95d348ea006f14ba926e842ffd< 65168712c216584ff482a7d1a67589f2079b2634 | affected |
0c2204a4ad710d95d348ea006f14ba926e842ffd< dff081c3602f2fd810f69ef47945a226980dd05d | affected | ||
0c2204a4ad710d95d348ea006f14ba926e842ffd< 4ae0bd51bf7079e9c2a06b5de0ae04ba70d10167 | affected | ||
0c2204a4ad710d95d348ea006f14ba926e842ffd< 0f313eb6a8f6dffa491373cf3afab979fa1c02f4 | affected | ||
0c2204a4ad710d95d348ea006f14ba926e842ffd< db3c60ec772de30acae92d560dfcc5258e58dbe8 | affected | ||
0c2204a4ad710d95d348ea006f14ba926e842ffd< 2e127ceb1c415e246076d8e09e23e443a7a2038f | affected | ||
0c2204a4ad710d95d348ea006f14ba926e842ffd< f96779e916576e81430ebb326baff6e433fef8ae | affected | ||
0c2204a4ad710d95d348ea006f14ba926e842ffd< 7809fea20c9404bfcfa6112ec08d1fe1d3520beb | affected | ||
| … +10 more rows | |||
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-46047
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
net: qrtr: ns: Fix use-after-free in driver remove()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Fix use-after-free in driver remove() In the remove callback, if a packet arrives after destroy_workqueue() is called, but before sock_release(), the qrtr_ns_data_ready() callback will try to queue the work, causing use-after-free issue. Fix this issue by saving the default 'sk_data_ready' callback during qrtr_ns_init() and use it to replace the qrtr_ns_data_ready() callback at the start of remove(). This ensures that even if a packet arrives after destroy_workqueue(), the work struct will not be dereferenced. Note that it is also required to ensure that the RX threads are completed before destroying the workqueue, because the threads could be using the qrtr_ns_data_ready() callback.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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qrtr_ns驱动移除时存在释放后重用问题，可能导致数据包到达后工作队列被销毁。
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
II. Public POCs for CVE-2026-46047
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-46047
请登录查看更多情报信息。
Patches & Fixes for CVE-2026-46047 (8)
Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total
| CVE-2026-45898 | 9.8 CRITICAL | RDMA/iwcm: Fix workqueue list corruption by removing work_list |
| CVE-2026-45972 | 9.8 CRITICAL | smb: client: fix potential UAF and double free in smb2_open_file() |
| CVE-2026-46039 | 9.8 CRITICAL | rxgk: Fix potential integer overflow in length check |
| CVE-2026-45988 | 9.8 CRITICAL | rxrpc: Fix re-decryption of RESPONSE packets |
| CVE-2026-46043 | 9.1 CRITICAL | RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv |
| CVE-2026-45945 | 8.8 HIGH | iommu/vt-d: Fix race condition during PASID entry replacement |
| CVE-2026-46056 | 8.8 HIGH | Bluetooth: hci_event: fix potential UAF in SSP passkey handlers |
| CVE-2026-46037 | 8.2 HIGH | ipv4: icmp: validate reply type before using icmp_pointers |
| CVE-2026-45843 | 8.2 HIGH | slip: bound decode() reads against the compressed packet length |
| CVE-2026-46099 | 8.1 HIGH | net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels |
| CVE-2026-46010 | 8.1 HIGH | rxrpc: Fix error handling in rxgk_extract_token() |
| CVE-2026-46076 | 7.9 HIGH | KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1 |
| CVE-2026-45852 | 7.8 HIGH | RDMA/rxe: Fix double free in rxe_srq_from_init |
| CVE-2026-45970 | 7.8 HIGH | bonding: alb: fix UAF in rlb_arp_recv during bond up/down |
| CVE-2026-46006 | 7.8 HIGH | drm/nouveau: fix u32 overflow in pushbuf reloc bounds check |
| CVE-2026-45878 | 7.8 HIGH | drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 |
| CVE-2026-45942 | 7.8 HIGH | ext4: fix e4b bitmap inconsistency reports |
| CVE-2026-45931 | 7.8 HIGH | accel/amdxdna: Hold mm structure across iommu_sva_unbind_device() |
| CVE-2026-45984 | 7.8 HIGH | gfs2: Fix use-after-free in iomap inline data write path |
| CVE-2026-45929 | 7.8 HIGH | ovpn: fix possible use-after-free in ovpn_net_xmit |
Showing top 20 of 276 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
Same vendor: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
V. Comments for CVE-2026-46047
No comments yet