CVE-2021-46960

cifs: Return correct error code from smb2_get_enc_key

MEDIUM

5.5

CVSS Score

Published: February 27, 2024 at 06:46 PM UTC

Updated: August 5, 2026 at 09:24 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Return correct error code from smb2_get_enc_key Avoid a warning if the error percolates back up: [440700.376476] CIFS VFS: \\otters.example.com crypt_message: Could not get encryption key [440700.386947] ------------[ cut here ]------------ [440700.386948] err = 1 [440700.386977] WARNING: CPU: 11 PID: 2733 at /build/linux-hwe-5.4-p6lk6L/linux-hwe-5.4-5.4.0/lib/errseq.c:74 errseq_set+0x5c/0x70 ... [440700.397304] CPU: 11 PID: 2733 Comm: tar Tainted: G OE 5.4.0-70-generic #78~18.04.1-Ubuntu ... [440700.397334] Call Trace: [440700.397346] __filemap_set_wb_err+0x1a/0x70 [440700.397419] cifs_writepages+0x9c7/0xb30 [cifs] [440700.397426] do_writepages+0x4b/0xe0 [440700.397444] __filemap_fdatawrite_range+0xcb/0x100 [440700.397455] filemap_write_and_wait+0x42/0xa0 [440700.397486] cifs_setattr+0x68b/0xf30 [cifs] [440700.397493] notify_change+0x358/0x4a0 [440700.397500] utimes_common+0xe9/0x1c0 [440700.397510] do_utimes+0xc5/0x150 [440700.397520] __x64_sys_utimensat+0x88/0xd0

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.11 ≤ v < 4.14.2334.11 ≤ v < 4.19.1914.11 ≤ v < 5.10.364.11 ≤ v < 5.11.204.11 ≤ v < 5.12.34.11 ≤ v < 5.134.11 ≤ v < 5.4.1184.15 ≤ v < 4.19.1914.20 ≤ v < 5.4.1185.11 ≤ v < 5.11.205.12 ≤ v < 5.12.35.5 ≤ v < 5.10.364.1161cfac6f267dabcf2740a7ec8a0295833b28b5f5

Vendor states this is fixed in 83728cbf366e334301091d5b808add468ab46b27 (fixed)

Vendor states this is fixed in 93f3339b22ba17e66f0808737467b70ba087eaec (fixed)

Vendor states this is fixed in aaa0faa5c28a91c362352d6b35dc3ed10df56fb0 (fixed)

Vendor states this is fixed in b399c1a3ea0b9d10047ff266d65533df7f15532f (fixed)

Vendor states this is fixed in e486f8397f3f14a7cadc166138141fdb14379a54 (fixed)

Vendor states this is fixed in e94851629c49c65b4fbb29a5725ddfd7988f8f20 (fixed)

Vendor states this is fixed in f59a9242942fef0de7b926e438ba4eae65d4b4dd (fixed)

Vendor states this is fixed in 4.11 (unaffected)

Vendor states this is fixed in 4.14.233 (unaffected)

Vendor states this is fixed in 4.19.191 (unaffected)

Vendor states this is fixed in 5.10.36 (unaffected)

Vendor states this is fixed in 5.11.20 (unaffected)