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 | Nov 14, 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:
[<0000000098f3a26d>] alua_activate+0xb0/0x320
[<000000003b529641>] scsi_dh_activate+0xb2/0x140
[<000000007b296db3>] activate_path_work+0xc6/0xe0 [dm_multipath]
[<000000007adc9ace>] process_one_work+0x3c5/0x730
[<00000000c457a985>] worker_thread+0x93/0x650
[<00000000cb80e628>] kthread+0x1ba/0x210
[<00000000a1e61077>] ret_from_fork+0x22/0x30
Fix the problem by freeing 'qdata' in error path.
Solutions
References
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