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CVE-2025-38031
published 2025-06-18

CVE-2025-38031: In the Linux kernel, the following vulnerability has been resolved: padata: do not leak refcount in reorder_work A recent patch that addressed a UAF introduced…

medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
In the Linux kernel, the following vulnerability has been resolved: padata: do not leak refcount in reorder_work A recent patch that addressed a UAF introduced a reference count leak: the parallel_data refcount is incremented unconditionally, regardless of the return value of queue_work(). If the work item is already queued, the incremented refcount is never decremented. Fix this by checking the return value of queue_work() and decrementing the refcount when necessary. Resolves: Unreferenced object 0xffff9d9f421e3d80 (size 192): comm "cryptomgr_probe", pid 157, jiffies 4294694003 hex dump (first 32 bytes): 80 8b cf 41 9f 9d ff ff b8 97 e0 89 ff ff ff ff ...A............ d0 97 e0 89 ff ff ff ff 19 00 00 00 1f 88 23 00 ..............#. backtrace (crc 838fb36): __kmalloc_cache_noprof+0x284/0x320 padata_alloc_pd+0x20/0x1e0 padata_alloc_shell+0x3b/0xa0 0xffffffffc040a54d cryptomgr_probe+0x43/0xc0 kthread+0xf6/0x1f0 ret_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30

Affected

40 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
debianlinux-6.1< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux>= 4c6209efea2208597dbd3e52dc87a0d1a8f2dbe1 < 1a426abdf1c86882c9203dd8182f3b8274b899381a426abdf1c86882c9203dd8182f3b8274b89938
linuxlinux>= 5.10.235 < 5.10.2385.10.238
linuxlinux>= 5.15.179 < 5.15.1855.15.185
linuxlinux>= 6.1.129 < 6.1.1416.1.141
linuxlinux>= 6.12.13 < 6.12.316.12.31
linuxlinux>= 6.13.2 < 6.146.14
linuxlinux>= 6.6.76 < 6.6.936.6.93
linuxlinux>= 6f45ef616775b0ce7889b0f6077fc8d681ab30bc < 584a729615fa92f4de45480efb7e569d14be1516584a729615fa92f4de45480efb7e569d14be1516
linuxlinux>= 7000507bb0d2ceb545c0a690e0c707c897d102c2 < cceb15864e1612ebfbc10ec4e4dcd19a10c0056ccceb15864e1612ebfbc10ec4e4dcd19a10c0056c
linuxlinux>= 8ca38d0ca8c3d30dd18d311f1a7ec5cb56972cac < 5300e487487d7a2e3e1e6e9d8f03ed9452e4019e5300e487487d7a2e3e1e6e9d8f03ed9452e4019e
linuxlinux>= dd7d37ccf6b11f3d95e797ebe4e9e886d0332600 < 1c65ae4988714716101555fe2b9830e33136d6fb1c65ae4988714716101555fe2b9830e33136d6fb
linuxlinux>= dd7d37ccf6b11f3d95e797ebe4e9e886d0332600 < d6ebcde6d4ecf34f8495fb30516645db3aea8993d6ebcde6d4ecf34f8495fb30516645db3aea8993
linuxlinux>= f4f1b1169fc3694f9bc3e28c6c68dbbf4cc744c0 < b9ad8e50e8589607e68e6c4cefa7f72bf35a2cb1b9ad8e50e8589607e68e6c4cefa7f72bf35a2cb1
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.147-16.1.147-1
linuxlinux_kernel>= 0 < 6.12.32-16.12.32-1
linuxlinux_kernel>= 0 < 6.12.32-16.12.32-1
linuxlinux_kernel>= 0 < 5.15.0-152.1625.15.0-152.162
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM