CVE-2022-49839

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Source
https://cve.org/CVERecord?id=CVE-2022-49839
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49839.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49839
Downstream
Related
Published
2025-05-01T14:09:55.599Z
Modified
2026-03-12T03:25:52.841513Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
scsi: scsi_transport_sas: Fix error handling in sas_phy_add()
Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: scsitransportsas: Fix error handling in sasphyadd()

If transportadddevice() fails in sasphyadd(), the kernel will crash trying to delete the device in transportremovedevice() called from sasremovehost().

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 : devicedel+0x54/0x3d0 lr : devicedel+0x37c/0x3d0 Call trace: devicedel+0x54/0x3d0 attributecontainerclassdevicedel+0x28/0x38 transportremoveclassdev+0x6c/0x80 attributecontainerdevicetrigger+0x108/0x110 transportremovedevice+0x28/0x38 sasphydelete+0x30/0x60 [scsitransportsas] dosasphydelete+0x6c/0x80 [scsitransportsas] deviceforeachchild+0x68/0xb0 sasremovechildren+0x40/0x50 [scsitransportsas] sasremovehost+0x20/0x38 [scsitransportsas] hisisasremove+0x40/0x68 [hisisasmain] hisisasv2remove+0x20/0x30 [hisisasv2hw] platform_remove+0x2c/0x60

Fix this by checking and handling return value of transportadddevice() in sasphyadd().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49839.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c7ebbbce366c02e5657ac6b6059933fe0353b175
Fixed
03aabcb88aeeb7221ddb6196ae84ad5fb17b743f
Fixed
2f21d653c648735657e23948b1d7ac7273de0f87
Fixed
c736876ee294bb4f271d76a25cc7d70c8537bc5d
Fixed
5d7bebf2dfb0dc97aac1fbace0910e557ecdb16f

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49839.json"