Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-38262— tty: serial: uartlite: register uart driver in init

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uartlite驱动注册竞争条件，可能导致空指针取消引用。

CVSS 7.8 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1564 · Hide Artifacts

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 238b8721a554a33a451a3f13bdb5be8fe5cfc927< 5015eed450005bab6e5cb6810f7a62eab0434fc4 affected
238b8721a554a33a451a3f13bdb5be8fe5cfc927< 9c905fdbba68a6d73d39a6b7de9b9f0d6c46df87 affected
238b8721a554a33a451a3f13bdb5be8fe5cfc927< 6db06aaea07bb7c8e33a425cf7b98bf29ee6056e affected
238b8721a554a33a451a3f13bdb5be8fe5cfc927< 8e958d10dd0ce5ae674cce460db5c9ca3f25243b affected
238b8721a554a33a451a3f13bdb5be8fe5cfc927< 685d29f2c5057b32c7b1b46f2a7d303b926c8f72 affected
238b8721a554a33a451a3f13bdb5be8fe5cfc927< f5e4229d94792b40e750f30c92bcf7a3107c72ef affected
238b8721a554a33a451a3f13bdb5be8fe5cfc927< 6bd697b5fc39fd24e2aa418c7b7d14469f550a93 affected
2.6.20 affected
… +8 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-38262

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
tty: serial: uartlite: register uart driver in init
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tty: serial: uartlite: register uart driver in init When two instances of uart devices are probing, a concurrency race can occur. If one thread calls uart_register_driver function, which first allocates and assigns memory to 'uart_state' member of uart_driver structure, the other instance can bypass uart driver registration and call ulite_assign. This calls uart_add_one_port, which expects the uart driver to be fully initialized. This leads to a kernel panic due to a null pointer dereference: [ 8.143581] BUG: kernel NULL pointer dereference, address: 00000000000002b8 [ 8.156982] #PF: supervisor write access in kernel mode [ 8.156984] #PF: error_code(0x0002) - not-present page [ 8.156986] PGD 0 P4D 0 ... [ 8.180668] RIP: 0010:mutex_lock+0x19/0x30 [ 8.188624] Call Trace: [ 8.188629] ? __die_body.cold+0x1a/0x1f [ 8.195260] ? page_fault_oops+0x15c/0x290 [ 8.209183] ? __irq_resolve_mapping+0x47/0x80 [ 8.209187] ? exc_page_fault+0x64/0x140 [ 8.209190] ? asm_exc_page_fault+0x22/0x30 [ 8.209196] ? mutex_lock+0x19/0x30 [ 8.223116] uart_add_one_port+0x60/0x440 [ 8.223122] ? proc_tty_register_driver+0x43/0x50 [ 8.223126] ? tty_register_driver+0x1ca/0x1e0 [ 8.246250] ulite_probe+0x357/0x4b0 [uartlite] To prevent it, move uart driver registration in to init function. This will ensure that uart_driver is always registered when probe function is called.
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uartlite驱动注册竞争条件，可能导致空指针取消引用。
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 238b8721a554a33a451a3f13bdb5be8fe5cfc927 ~ 5015eed450005bab6e5cb6810f7a62eab0434fc4 -
Linux Linux 2.6.20 -

II. Public POCs for CVE-2025-38262

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-38262

请登录查看更多情报信息。

Same Patch Batch · Linux · 2025-07-09 · 26 CVEs total

CVE-2025-38264 9.8 CRITICAL nvme-tcp: sanitize request list handling
CVE-2025-38246 9.8 CRITICAL bnxt: properly flush XDP redirect lists
CVE-2025-38253 8.8 HIGH HID: wacom: fix crash in wacom_aes_battery_handler()
CVE-2025-38238 8.8 HIGH scsi: fnic: Fix crash in fnic_wq_cmpl_handler when FDMI times out
CVE-2025-38252 7.8 HIGH cxl/ras: Fix CPER handler device confusion
CVE-2025-38261 7.8 HIGH riscv: save the SR_SUM status over switches
CVE-2025-38250 7.8 HIGH Bluetooth: hci_core: Fix use-after-free in vhci_flush()
CVE-2025-38248 7.8 HIGH bridge: mcast: Fix use-after-free during router port configuration
CVE-2025-38242 7.8 HIGH mm: userfaultfd: fix race of userfaultfd_move and swap cache
CVE-2025-38244 7.5 HIGH smb: client: fix potential deadlock when reconnecting channels
CVE-2025-38239 7.3 HIGH scsi: megaraid_sas: Fix invalid node index
CVE-2025-38257 7.3 HIGH s390/pkey: Prevent overflow in size calculation for memdup_user()
CVE-2025-38255 lib/group_cpus: fix NULL pointer dereference from group_cpus_evenly()
CVE-2025-38263 bcache: fix NULL pointer in cache_set_flush()
CVE-2025-38241 mm/shmem, swap: fix softlockup with mTHP swapin
CVE-2025-38260 btrfs: handle csum tree error with rescue=ibadroots correctly
CVE-2025-38259 ASoC: codecs: wcd9335: Fix missing free of regulator supplies
CVE-2025-38258 mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write
CVE-2025-38256 io_uring/rsrc: fix folio unpinning
CVE-2025-38254 drm/amd/display: Add sanity checks for drm_edid_raw()

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38262

No comments yet

Leave a comment