Message ID | 20240530135219.67528-1-abhishek@linux.ibm.com |
---|---|
State | Superseded |
Headers | show
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Thu, 30 May 2024 13:52:28 +0000 (GMT) Received: from li-22421c4c-355e-11b2-a85c-fdc6c782cba9.in.ibm.com (unknown [9.109.222.204]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 30 May 2024 13:52:28 +0000 (GMT) From: Abhishek Singh Tomar <abhishek@linux.ibm.com> To: skiboot@lists.ozlabs.org Date: Thu, 30 May 2024 19:22:18 +0530 Message-ID: <20240530135219.67528-1-abhishek@linux.ibm.com> X-Mailer: git-send-email 2.45.1 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: TtpUDzgNy1Rj7Md_qglcqJminp1LYcxt X-Proofpoint-GUID: TtpUDzgNy1Rj7Md_qglcqJminp1LYcxt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-30_09,2024-05-30_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 lowpriorityscore=0 mlxscore=0 spamscore=0 bulkscore=0 phishscore=0 priorityscore=1501 mlxlogscore=999 clxscore=1011 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405300105 Subject: [Skiboot] [PATCH 1/2] core/pldm: Fix dangling point issue X-BeenThere: skiboot@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Mailing list for skiboot development <skiboot.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/skiboot>, <mailto:skiboot-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/skiboot/> List-Post: <mailto:skiboot@lists.ozlabs.org> List-Help: <mailto:skiboot-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/skiboot>, <mailto:skiboot-request@lists.ozlabs.org?subject=subscribe> Cc: Abhishek Singh Tomar <abhishek@linux.ibm.com>, mahesh@linux.vnet.ibm.com Content-Type: text/plain; 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[1/2] core/pldm: Fix dangling point issue
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diff --git a/core/pldm/pldm-platform-requests.c b/core/pldm/pldm-platform-requests.c index cb0ff9443..21ec43a47 100644 --- a/core/pldm/pldm-platform-requests.c +++ b/core/pldm/pldm-platform-requests.c @@ -38,8 +38,10 @@ static void pdr_init_complete(bool success) if (!success) { pdr_ready = false; - if (pdrs_repo) + if (pdrs_repo) { pldm_pdr_destroy(pdrs_repo); + pdrs_repo = NULL; + } return; }
When calling pldm_platform_init() and the GET_PDR PLDM request fails, the 'pdrs_repo' global variable is freed but becomes a dangling pointer. Subsequent calls to pldm_platform_init will lead to an invalid read. ==28652== Invalid read of size 8 ==28652== at 0x40A4C8: pldm_pdr_destroy (pdr.c:130) ==28652== by 0x424BA3: pdr_init_complete (pldm-platform-requests.c:42) ==28652== by 0x4274DA: pldm_platform_load_pdrs (pldm-platform-requests.c:1170) ==28652== by 0x42759C: pdrs_init (pldm-platform-requests.c:1190) ==28652== by 0x427703: pldm_platform_init (pldm-platform-requests.c:1221) Signed-off-by: Abhishek Singh Tomar <abhishek@linux.ibm.com> --- core/pldm/pldm-platform-requests.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)