CVE-2024-42320

s390/dasd: fix error checks in dasd_copy_pair_store()

MEDIUM

5.5

CVSS Score

Published: August 17, 2024 at 09:09 AM UTC

Updated: June 17, 2026 at 07:49 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix error checks in dasd_copy_pair_store() dasd_add_busid() can return an error via ERR_PTR() if an allocation fails. However, two callsites in dasd_copy_pair_store() do not check the result, potentially resulting in a NULL pointer dereference. Fix this by checking the result with IS_ERR() and returning the error up the stack.

Affected

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

Linux Kernel · Linux

95%

v ≥ 5.15.1535.15.153 ≤ v < 5.166.1 ≤ v < 6.1.1036.1 ≤ v < 6.10.36.1 ≤ v < 6.116.1 ≤ v < 6.6.446.2 ≤ v < 6.6.446.7 ≤ v < 6.10.35.15.153 6.1932600a295cc299d470ca7f5d6491bd0dfc99ea7a91ff09d39f9b6545254839ac91f1ff7bd21d39e

Vendor states this is fixed in 68d4c3722290ad300c295fb3435e835d200d5cb2 (fixed)

Vendor states this is fixed in 8e64d2356cbc800b4cd0e3e614797f76bcf0cdb8 (fixed)

Vendor states this is fixed in cc8b7284d5076722e0b8062373b68d8e47c3bace (fixed)

Vendor states this is fixed in e511167e65d332d07b3c7a3d5a741ee9c19a8c27 (fixed)

Affected range stops below 5.16, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 6.1 (unaffected)

Vendor states this is fixed in 6.1.103 (unaffected)

Vendor states this is fixed in 6.10.3 (unaffected)

Vendor states this is fixed in 6.11 (unaffected)

Vendor states this is fixed in 6.6.44 (unaffected)