CVE-2022-49839 (GCVE-0-2022-49839)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2025-10-01 17:01
VLAI?
Title
scsi: scsi_transport_sas: Fix error handling in sas_phy_add()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: scsi_transport_sas: Fix error handling in sas_phy_add() If transport_add_device() fails in sas_phy_add(), the kernel will crash trying to delete the device in transport_remove_device() called from sas_remove_host(). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 61 PID: 42829 Comm: rmmod Kdump: loaded Tainted: G W 6.1.0-rc1+ #173 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x54/0x3d0 lr : device_del+0x37c/0x3d0 Call trace: device_del+0x54/0x3d0 attribute_container_class_device_del+0x28/0x38 transport_remove_classdev+0x6c/0x80 attribute_container_device_trigger+0x108/0x110 transport_remove_device+0x28/0x38 sas_phy_delete+0x30/0x60 [scsi_transport_sas] do_sas_phy_delete+0x6c/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x40/0x50 [scsi_transport_sas] sas_remove_host+0x20/0x38 [scsi_transport_sas] hisi_sas_remove+0x40/0x68 [hisi_sas_main] hisi_sas_v2_remove+0x20/0x30 [hisi_sas_v2_hw] platform_remove+0x2c/0x60 Fix this by checking and handling return value of transport_add_device() in sas_phy_add().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c7ebbbce366c02e5657ac6b6059933fe0353b175 , < 03aabcb88aeeb7221ddb6196ae84ad5fb17b743f (git)
Affected: c7ebbbce366c02e5657ac6b6059933fe0353b175 , < 2f21d653c648735657e23948b1d7ac7273de0f87 (git)
Affected: c7ebbbce366c02e5657ac6b6059933fe0353b175 , < c736876ee294bb4f271d76a25cc7d70c8537bc5d (git)
Affected: c7ebbbce366c02e5657ac6b6059933fe0353b175 , < 5d7bebf2dfb0dc97aac1fbace0910e557ecdb16f (git)
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    Linux Linux Affected: 2.6.14
Unaffected: 0 , < 2.6.14 (semver)
Unaffected: 5.10.157 , ≤ 5.10.* (semver)
Unaffected: 5.15.80 , ≤ 5.15.* (semver)
Unaffected: 6.0.10 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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