How many CVEs have patched smb2_open?

11 published CVEs changed smb2_open in torvalds/linux, in 51 distinct patches totalling 55 changed lines, between 2022 and 2026.

What is the latest CVE that changed smb2_open?

CVE-2026-93282 (ksmbd: fix maximum allowed access checks), published 2026-09-24, changed lines 3622 to 4200 of fs/smb/server/smb2pdu.c.

How does smb2_open compare to the rest of torvalds/linux?

torvalds/linux has 19,281 CVEs with a located fix in total; 11 of them changed smb2_open.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Patched Functions
Torvalds
Linux
Smb2_open

smb2_open in torvalds/linux: Patched by 11 CVEs

torvalds/linux

Function

2 files

smb2_open

Name: smb2_open in torvalds/linux: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

Defined in 2 files

Last patched September 24, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2022–2026

Years

By CVE publication date

Overview

smb2_open in torvalds/linux was changed by 11 published CVE fixes between 2022 and 2026, in 51 distinct patches that added or removed 55 lines in total.

The name occurs in 2 files: fs/smb/server/smb2pdu.c, fs/ksmbd/smb2pdu.c.

torvalds/linux has 19,281 CVEs with a located fix in total, so 0% of them touched this function.

On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References

CVEs that patched it

Every published CVE whose fix changed smb2_open, newest first, with the lines each fix touched.

ksmbd: fix maximum allowed access checks
CVE-2026-93282 · fs/smb/server/smb2pdu.c · lines 3622–4200 · +7 −2 in 2 hunks
High · CVSS 8.1
EPSS 0.3%2026-09-24
ksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-53010 · fs/smb/server/smb2pdu.c · lines 3027–3815 · +5 −8 in 2 hunks
Critical · CVSS 9.8
EPSS 0.4%2026-06-24
smb: server: fix use-after-free in smb2_open()
CVE-2026-43378 · fs/smb/server/smb2pdu.c · lines 3619–3661 · +2 −3 in 2 hunks
Critical · CVSS 9.8
EPSS 0.3%2026-05-08
ksmbd: validate owner of durable handle on reconnect
CVE-2026-31717 · fs/smb/server/smb2pdu.c · lines 2997–2998 · +2 −1
High · CVSS 8.7
EPSS 0.6%2026-05-01
ksmbd: fix OOB write in QUERY_INFO for compound requests
CVE-2026-31432 · fs/smb/server/smb2pdu.c · lines 3437–3447 · +2 −2 in 2 hunks
Critical · CVSS 9.4
EPSS 0.6%2026-04-22
smb/server: fix refcount leak in smb2_open()
CVE-2025-71223 · fs/smb/server/smb2pdu.c · lines 3002–3006 · +1 −1
Low · CVSS 1.3
EPSS 0.1%2026-02-14
ksmbd: fix possible refcount leak in smb2_open()
CVE-2023-53061 · fs/ksmbd/smb2pdu.c · lines 2982–2986 · +4 −1
Medium · CVSS 5.5
EPSS 0.2%2025-05-02
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
CVE-2024-46742 · fs/ksmbd/smb2pdu.c · line 3233 · +1 −1
Medium · CVSS 5.5
EPSS 0.3%2024-09-18
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
CVE-2024-46742 · fs/smb/server/smb2pdu.c · line 3418 · +1 −1
Medium · CVSS 5.5
EPSS 0.3%2024-09-18
ksmbd: discard write access to the directory open
CVE-2024-41030 · fs/smb/server/smb2pdu.c · lines 3177–3179 · +3 −1
Medium · CVSS 5.5
EPSS 0.3%2024-07-29
ksmbd: fix potencial out-of-bounds when buffer offset is invalid
CVE-2024-26952 · fs/ksmbd/smb2pdu.c · line 2717 · +1 −1
High · CVSS 8.3
EPSS 0.7%2024-05-01
ksmbd: fix potencial out-of-bounds when buffer offset is invalid
CVE-2024-26952 · fs/smb/server/smb2pdu.c · line 2707 · +1 −1
High · CVSS 8.3
EPSS 0.7%2024-05-01
CVE-2022-47942
CVE-2022-47942 · fs/ksmbd/smb2pdu.c · line 2992 · +1 −1
High · CVSS 8.8
EPSS 3.7%2022-12-23

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Other functions in these files

Functions in the same files that CVE fixes also changed.

1smb2_sess_setupfs/smb/server/smb2pdu.c13 CVEs · 60 patches2024 to 2026
2smb2_sess_setupfs/ksmbd/smb2pdu.c11 CVEs · 21 patches2024 to 2026
3smb2_lockfs/smb/server/smb2pdu.c8 CVEs · 43 patches2025 to 2026
4smb2_session_logofffs/smb/server/smb2pdu.c7 CVEs · 31 patches2024 to 2026
5krb5_authenticatefs/smb/server/smb2pdu.c6 CVEs · 21 patches2025 to 2026
6smb2_check_user_sessionfs/smb/server/smb2pdu.c6 CVEs · 21 patches2024 to 2026
7smb2_ioctlfs/smb/server/smb2pdu.c5 CVEs · 45 patches2024 to 2026
8parse_durable_handle_contextfs/smb/server/smb2pdu.c5 CVEs · 23 patches2024 to 2026

Other hotspots in the repository

Functions in torvalds/linux changed by the most CVE fixes.

smb2_sess_setup13 CVEs · fs/smb/server/smb2pdu.c adjust_ptr_min_max_vals13 CVEs · kernel/bpf/verifier.c ext4_fill_super13 CVEs · fs/ext4/super.c bcm_rx_setup12 CVEs · net/can/bcm.c copy_process12 CVEs · kernel/fork.c smb2_sess_setup11 CVEs · fs/ksmbd/smb2pdu.c

All patched functions in torvalds/linux

Frequently asked questions

Common questions about CVE fixes to smb2_open.

How many CVEs have patched smb2_open?: 11 published CVEs changed smb2_open in torvalds/linux, in 51 distinct patches totalling 55 changed lines, between 2022 and 2026.
What is the latest CVE that changed smb2_open?: CVE-2026-93282 (ksmbd: fix maximum allowed access checks), published 2026-09-24, changed lines 3622 to 4200 of fs/smb/server/smb2pdu.c.
How does smb2_open compare to the rest of torvalds/linux?: torvalds/linux has 19,281 CVEs with a located fix in total; 11 of them changed smb2_open.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

fs/smb/server/smb2pdu.c on GitHub (opens in a new tab)
fs/ksmbd/smb2pdu.c on GitHub (opens in a new tab)
All patched functions in torvalds/linux
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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