Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine An error is detected with the following report when unloading the driver: "KASAN: use-after-free in lpfc_unreg_rpi+0x1b1b" The NLP_REG_LOGIN_SEND nlp_flag is set in lpfc_reg_fab_ctrl_node(), but the flag is not cleared upon completion of the login. This allows a second call to lpfc_unreg_rpi() to proceed with nlp_rpi set to LPFC_RPI_ALLOW_ERROR. This results in a use after free access when used as an rpi_ids array index. Fix by clearing the NLP_REG_LOGIN_SEND nlp_flag in lpfc_mbx_cmpl_fc_reg_login().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected fe83e3b9b422ac8ece2359c7b7290efe7f0335a2 before dbebf865b3239595c1d4dba063b122862583b52a; affected fe83e3b9b422ac8ece2359c7b7290efe7f0335a2 before 79b20beccea3a3938a8500acef4e6b9d7c66142f |
| Linux / Linux | affected 5.14; unaffected 0 before 5.14; unaffected 5.15.5 through 5.15.*; unaffected 5.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dbebf865b3239595c1d4dba063b122862583b52a
- https://git.kernel.org/stable/c/79b20beccea3a3938a8500acef4e6b9d7c66142f
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.