CVE-2025-38584
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: padata: Fix pd UAF once and for all There is a race condition/UAF i...
Published: 2025-08-19 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-416
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: padata: Fix pd UAF once and for all There is a race condition/UAF in padata_reorder that goes back to the initial commit. A reference count is taken at the start of the process in padata_do_parallel, and released at the end in padata_serial_worker. This reference count is (and only is) required for padata_replace to function correctly. If padata_replace is never called then there is no issue. In the function padata_reorder which serves as the core of padata, as soon as padata is added to queue->serial.list, and the associated spin lock released, that padata may be processed and the reference count on pd would go away. Fix this by getting the next padata before the squeue->serial lock is released. In order to make this possible, simplify padata_reorder by only calling it once the next padata arrives.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2025-38584
- [Other]https://git.kernel.org/stable/c/609e59193fc6d9dd323f1c6ae1fdd721f1c79680
- [Patch]https://git.kernel.org/stable/c/71203f68c7749609d7fc8ae6ad054bdedeb24f91
- [Other]https://git.kernel.org/stable/c/73f132e60857038416540c3599b1de6033d7575a
- [Other]https://git.kernel.org/stable/c/a11a12a9880ab37342b73c93cfe1a3ada02ff0db
- [Other]https://git.kernel.org/stable/c/a2048e475e22b13dc3e53d485b7e6e11464ed9a6
- [Patch]https://git.kernel.org/stable/c/cdf79bd2e1ecb3cc75631c73d8f4149be6019a52
- [Patch]https://git.kernel.org/stable/c/dbe3e911a59bda6de96e7cae387ff882c2c177fa
- [Other]https://git.kernel.org/stable/c/f231d5d001ec75f5886c02d496a4c79edc383d45
Related CVEs
Same vendor
- CVE-2026-46273 — In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapt... (8.6 HIGH)
- CVE-2026-46272 — In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etr: Fix race condition between sysfs and perf mode ... (4.7 MEDIUM)
- CVE-2026-46271 — In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi... (7.8 HIGH)
- CVE-2026-46270 — In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() ... (8.4 HIGH)
- CVE-2026-46269 — In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing dev... (5.5 MEDIUM)
Same CWE
- CVE-2026-10640 — Zephyr's IPv6 Neighbor Discovery send paths (net_ipv6_send_na, net_ipv6_send_ns, net_ipv6_send_rs in subsys/net/ip/ipv6_nbr.c) updated th... (4.2 MEDIUM)
- CVE-2026-10639 — In Zephyr's native IPv4 stack, icmpv4_handle_echo_request() in subsys/net/ip/icmpv4.c builds an echo-reply packet (reply), hands it to ne... (4.8 MEDIUM)
- CVE-2026-10638 — subsys/net/ip/icmpv6.c reads the network interface from a net_pkt after that packet has been handed to net_try_send_data() (5.9 MEDIUM)
- CVE-2026-10637 — subsys/net/ip/ipv6_mld.c:mld_send() read the packet interface via net_pkt_iface(pkt) after net_send_data(pkt) returned successfully (5.9 MEDIUM)
- CVE-2026-10636 — In Zephyr's IPv4 IGMP implementation, igmp_send() in subsys/net/ip/igmp.c read the network interface back out of the packet via net_pkt_i... (3.7 LOW)