vulnerability
Ubuntu: (CVE-2023-53078): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | May 2, 2025 | May 8, 2025 | Jun 12, 2025 |
Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate()
If alua_rtpg_queue() failed from alua_activate(), then 'qdata' is not
freed, which will cause following memleak:
unreferenced object 0xffff88810b2c6980 (size 32):
comm "kworker/u16:2", pid 635322, jiffies 4355801099 (age 1216426.076s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
40 39 24 c1 ff ff ff ff 00 f8 ea 0a 81 88 ff ff @9$.............
backtrace:
[] alua_activate+0xb0/0x320
[] scsi_dh_activate+0xb2/0x140
[] activate_path_work+0xc6/0xe0 [dm_multipath]
[] process_one_work+0x3c5/0x730
[] worker_thread+0x93/0x650
[] kthread+0x1ba/0x210
[] ret_from_fork+0x22/0x30
Fix the problem by freeing 'qdata' in error path.
Solution(s)
References
- CVE-2023-53078
- https://attackerkb.com/topics/CVE-2023-53078
- URL-https://git.kernel.org/linus/a13faca032acbf2699293587085293bdfaafc8ae
- URL-https://git.kernel.org/stable/c/0d89254a4320eb7de0970c478172f764125c6355
- URL-https://git.kernel.org/stable/c/123483df146492ca22b503ae6dacc2ce7c3a3974
- URL-https://git.kernel.org/stable/c/1c55982beb80c7d3c30278fc6cfda8496a31dbe6
- URL-https://git.kernel.org/stable/c/5c4d71424df34fc23dc5336d09394ce68c849542
- URL-https://git.kernel.org/stable/c/9311e7a554dffd3823499e309a8b86a5cd1540e5
- URL-https://git.kernel.org/stable/c/a13faca032acbf2699293587085293bdfaafc8ae
- URL-https://git.kernel.org/stable/c/c09cdf6eb815ee35e55d6c50ac7f63db58bd20b8
- URL-https://git.kernel.org/stable/c/c110051d335ef7f62ad33474b0c23997fee5bfb5
- URL-https://www.cve.org/CVERecord?id=CVE-2023-53078
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