CVE-2023-52480 (GCVE-0-2023-52480)
Vulnerability from cvelistv5
Published
2024-02-29 05:43
Modified
2026-08-15 12:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix race condition between session lookup and expire
Thread A + Thread B
ksmbd_session_lookup | smb2_sess_setup
sess = xa_load |
|
| xa_erase(&conn->sessions, sess->id);
|
| ksmbd_session_destroy(sess) --> kfree(sess)
|
// UAF! |
sess->last_active = jiffies |
+
This patch add rwsem to fix race condition between ksmbd_session_lookup
and ksmbd_expire_session.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a6a9601ba995d0fec635324cb9fd8d14f9bea14e Version: 1fc8a2b14ef5223f8e0b95faba2ee0a6e4d0f99d Version: ea174a91893956450510945a0c5d1a10b5323656 Version: ea174a91893956450510945a0c5d1a10b5323656 Version: 750a2d772e9d9ff377fd32e3b6797bf2cd847a7a Version: 6775ee7ef4b37c521aa4cf3730f54554c4875542 Version: 6.1.29 ≤ Version: 6.2.16 ≤ Version: 6.3.2 ≤ |
||
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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