Bugzilla – Bug 1220685
VUL-0: CVE-2021-47026: kernel: RDMA/rtrs-clt: destroy sysfs after removing session from active list
Last modified: 2024-05-28 11:41:49 UTC
In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-clt: destroy sysfs after removing session from active list A session can be removed dynamically by sysfs interface "remove_path" that eventually calls rtrs_clt_remove_path_from_sysfs function. The current rtrs_clt_remove_path_from_sysfs first removes the sysfs interfaces and frees sess->stats object. Second it removes the session from the active list. Therefore some functions could access non-connected session and access the freed sess->stats object even-if they check the session status before accessing the session. For instance rtrs_clt_request and get_next_path_min_inflight check the session status and try to send IO to the session. The session status could be changed when they are trying to send IO but they could not catch the change and update the statistics information in sess->stats object, and generate use-after-free problem. (see: "RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats") This patch changes the rtrs_clt_remove_path_from_sysfs to remove the session from the active session list and then destroy the sysfs interfaces. Each function still should check the session status because closing or error recovery paths can change the status. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47026 https://www.cve.org/CVERecord?id=CVE-2021-47026 https://git.kernel.org/stable/c/676171f9405dcaa45a33d18241c32f387dbaae39 https://git.kernel.org/stable/c/7f4a8592ff29f19c5a2ca549d0973821319afaad https://git.kernel.org/stable/c/b64415c6b3476cf9fa4d0aea3807065b8403a937 https://git.kernel.org/stable/c/d3cca8067d43dfee4a3535c645b55f618708dccb
All affected branches already contain the fix. Closing.
SUSE-SU-2024:1465-1: An update that solves 145 vulnerabilities, contains five features and has five security fixes can now be installed. Category: security (important) Bug References: 1192145, 1209657, 1218336, 1218447, 1218479, 1218562, 1219170, 1219264, 1220320, 1220340, 1220366, 1220400, 1220411, 1220413, 1220414, 1220425, 1220426, 1220429, 1220432, 1220442, 1220445, 1220465, 1220468, 1220475, 1220484, 1220486, 1220487, 1220516, 1220521, 1220528, 1220529, 1220532, 1220536, 1220554, 1220556, 1220557, 1220560, 1220561, 1220566, 1220575, 1220580, 1220583, 1220611, 1220615, 1220621, 1220625, 1220630, 1220631, 1220638, 1220639, 1220640, 1220662, 1220663, 1220669, 1220670, 1220677, 1220678, 1220685, 1220687, 1220688, 1220692, 1220697, 1220703, 1220706, 1220733, 1220734, 1220739, 1220743, 1220749, 1220751, 1220753, 1220758, 1220759, 1220764, 1220768, 1220769, 1220777, 1220779, 1220785, 1220790, 1220794, 1220824, 1220829, 1220836, 1220846, 1220850, 1220861, 1220871, 1220883, 1220946, 1220954, 1220969, 1220979, 1220982, 1220985, 1220987, 1221015, 1221044, 1221058, 1221061, 1221077, 1221088, 1221276, 1221293, 1221532, 1221534, 1221541, 1221548, 1221552, 1221575, 1221605, 1221606, 1221608, 1221830, 1221931, 1221932, 1221934, 1221935, 1221949, 1221952, 1221965, 1221966, 1221969, 1221973, 1221974, 1221978, 1221989, 1221990, 1221991, 1221992, 1221993, 1221994, 1221996, 1221997, 1221998, 1221999, 1222000, 1222001, 1222002, 1222003, 1222004, 1222117, 1222422, 1222585, 1222619, 1222660, 1222664, 1222669, 1222706, 1222878 CVE References: CVE-2020-36780, CVE-2020-36781, CVE-2020-36782, CVE-2020-36783, CVE-2021-46908, CVE-2021-46909, CVE-2021-46911, CVE-2021-46914, CVE-2021-46917, CVE-2021-46918, CVE-2021-46919, CVE-2021-46920, CVE-2021-46921, CVE-2021-46922, CVE-2021-46930, CVE-2021-46931, CVE-2021-46933, CVE-2021-46938, CVE-2021-46939, CVE-2021-46943, CVE-2021-46944, CVE-2021-46950, CVE-2021-46951, CVE-2021-46956, CVE-2021-46958, CVE-2021-46959, CVE-2021-46960, CVE-2021-46961, CVE-2021-46962, CVE-2021-46963, CVE-2021-46971, CVE-2021-46976, CVE-2021-46980, CVE-2021-46981, CVE-2021-46983, CVE-2021-46984, CVE-2021-46988, CVE-2021-46990, CVE-2021-46991, CVE-2021-46992, CVE-2021-46998, CVE-2021-47000, CVE-2021-47001, CVE-2021-47003, CVE-2021-47006, CVE-2021-47009, CVE-2021-47014, CVE-2021-47015, CVE-2021-47017, CVE-2021-47020, CVE-2021-47026, CVE-2021-47034, CVE-2021-47035, CVE-2021-47038, CVE-2021-47044, CVE-2021-47045, CVE-2021-47046, CVE-2021-47049, CVE-2021-47051, CVE-2021-47055, CVE-2021-47056, CVE-2021-47058, CVE-2021-47063, CVE-2021-47065, CVE-2021-47068, CVE-2021-47070, CVE-2021-47071, CVE-2021-47073, CVE-2021-47077, CVE-2021-47082, CVE-2021-47087, CVE-2021-47095, CVE-2021-47097, CVE-2021-47100, CVE-2021-47101, CVE-2021-47109, CVE-2021-47110, CVE-2021-47112, CVE-2021-47114, CVE-2021-47117, CVE-2021-47118, CVE-2021-47119, CVE-2021-47120, CVE-2021-47130, CVE-2021-47136, CVE-2021-47137, CVE-2021-47138, CVE-2021-47139, CVE-2021-47141, CVE-2021-47142, CVE-2021-47144, CVE-2021-47150, CVE-2021-47153, CVE-2021-47160, CVE-2021-47161, CVE-2021-47164, CVE-2021-47165, CVE-2021-47166, CVE-2021-47167, CVE-2021-47168, CVE-2021-47169, CVE-2021-47170, CVE-2021-47171, CVE-2021-47172, CVE-2021-47173, CVE-2021-47174, CVE-2021-47175, CVE-2021-47176, CVE-2021-47177, CVE-2021-47179, CVE-2021-47180, CVE-2021-47181, CVE-2021-47183, CVE-2021-47185, CVE-2021-47189, CVE-2021-47202, CVE-2022-48626, CVE-2023-0160, CVE-2023-52454, CVE-2023-52469, CVE-2023-52470, CVE-2023-52474, CVE-2023-52476, CVE-2023-52477, CVE-2023-52492, CVE-2023-52500, CVE-2023-52508, CVE-2023-52509, CVE-2023-52572, CVE-2023-52575, CVE-2023-52583, CVE-2023-52590, CVE-2023-52591, CVE-2023-52607, CVE-2023-52628, CVE-2023-6270, CVE-2023-6531, CVE-2023-7042, CVE-2023-7192, CVE-2024-22099, CVE-2024-26600, CVE-2024-26614, CVE-2024-26642, CVE-2024-26704, CVE-2024-26733 Jira References: PED-5759, SLE-13706, SLE-15131, SLE-15172, SLE-15176 Maintenance Incident: [SUSE:Maintenance:33363](https://smelt.suse.de/incident/33363/) Sources used: SUSE Linux Enterprise Micro 5.1 (src): kernel-source-rt-5.3.18-150300.166.1 SUSE Linux Enterprise Micro 5.2 (src): kernel-source-rt-5.3.18-150300.166.1 SUSE Linux Enterprise Micro for Rancher 5.2 (src): kernel-source-rt-5.3.18-150300.166.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:1489-1: An update that solves 157 vulnerabilities, contains five features and has four security fixes can now be installed. Category: security (important) Bug References: 1184942, 1186060, 1192145, 1194516, 1208995, 1209635, 1209657, 1212514, 1213456, 1217987, 1217988, 1217989, 1218336, 1218447, 1218479, 1218562, 1219170, 1219264, 1220320, 1220340, 1220366, 1220400, 1220411, 1220413, 1220414, 1220425, 1220426, 1220429, 1220432, 1220442, 1220445, 1220465, 1220468, 1220475, 1220484, 1220486, 1220487, 1220516, 1220521, 1220528, 1220529, 1220532, 1220554, 1220556, 1220557, 1220560, 1220561, 1220566, 1220575, 1220580, 1220583, 1220611, 1220615, 1220621, 1220625, 1220630, 1220631, 1220638, 1220639, 1220640, 1220641, 1220662, 1220663, 1220669, 1220670, 1220677, 1220678, 1220685, 1220687, 1220688, 1220692, 1220697, 1220703, 1220706, 1220733, 1220734, 1220739, 1220743, 1220745, 1220749, 1220751, 1220753, 1220758, 1220759, 1220764, 1220768, 1220769, 1220777, 1220779, 1220785, 1220790, 1220794, 1220824, 1220826, 1220829, 1220836, 1220846, 1220850, 1220861, 1220871, 1220883, 1220946, 1220954, 1220969, 1220979, 1220982, 1220985, 1220987, 1221015, 1221044, 1221058, 1221061, 1221077, 1221088, 1221276, 1221293, 1221532, 1221534, 1221541, 1221548, 1221552, 1221575, 1221605, 1221606, 1221608, 1221830, 1221931, 1221932, 1221934, 1221935, 1221949, 1221952, 1221965, 1221966, 1221969, 1221973, 1221974, 1221978, 1221989, 1221990, 1221991, 1221992, 1221993, 1221994, 1221996, 1221997, 1221998, 1221999, 1222000, 1222001, 1222002, 1222003, 1222004, 1222117, 1222422, 1222585, 1222619, 1222660, 1222664, 1222669, 1222706 CVE References: CVE-2020-36780, CVE-2020-36781, CVE-2020-36782, CVE-2020-36783, CVE-2021-23134, CVE-2021-29155, CVE-2021-46908, CVE-2021-46909, CVE-2021-46911, CVE-2021-46914, CVE-2021-46917, CVE-2021-46918, CVE-2021-46919, CVE-2021-46920, CVE-2021-46921, CVE-2021-46922, CVE-2021-46930, CVE-2021-46931, CVE-2021-46933, CVE-2021-46938, CVE-2021-46939, CVE-2021-46943, CVE-2021-46944, CVE-2021-46950, CVE-2021-46951, CVE-2021-46956, CVE-2021-46958, CVE-2021-46959, CVE-2021-46960, CVE-2021-46961, CVE-2021-46962, CVE-2021-46963, CVE-2021-46971, CVE-2021-46976, CVE-2021-46980, CVE-2021-46981, CVE-2021-46983, CVE-2021-46984, CVE-2021-46988, CVE-2021-46990, CVE-2021-46991, CVE-2021-46992, CVE-2021-46998, CVE-2021-47000, CVE-2021-47001, CVE-2021-47003, CVE-2021-47006, CVE-2021-47009, CVE-2021-47013, CVE-2021-47014, CVE-2021-47015, CVE-2021-47017, CVE-2021-47020, CVE-2021-47026, CVE-2021-47034, CVE-2021-47035, CVE-2021-47038, CVE-2021-47044, CVE-2021-47045, CVE-2021-47046, CVE-2021-47049, CVE-2021-47051, CVE-2021-47055, CVE-2021-47056, CVE-2021-47058, CVE-2021-47061, CVE-2021-47063, CVE-2021-47065, CVE-2021-47068, CVE-2021-47069, CVE-2021-47070, CVE-2021-47071, CVE-2021-47073, CVE-2021-47077, CVE-2021-47082, CVE-2021-47087, CVE-2021-47095, CVE-2021-47097, CVE-2021-47100, CVE-2021-47101, CVE-2021-47109, CVE-2021-47110, CVE-2021-47112, CVE-2021-47114, CVE-2021-47117, CVE-2021-47118, CVE-2021-47119, CVE-2021-47120, CVE-2021-47130, CVE-2021-47136, CVE-2021-47137, CVE-2021-47138, CVE-2021-47139, CVE-2021-47141, CVE-2021-47142, CVE-2021-47144, CVE-2021-47150, CVE-2021-47153, CVE-2021-47160, CVE-2021-47161, CVE-2021-47164, CVE-2021-47165, CVE-2021-47166, CVE-2021-47167, CVE-2021-47168, CVE-2021-47169, CVE-2021-47170, CVE-2021-47171, CVE-2021-47172, CVE-2021-47173, CVE-2021-47174, CVE-2021-47175, CVE-2021-47176, CVE-2021-47177, CVE-2021-47179, CVE-2021-47180, CVE-2021-47181, CVE-2021-47183, CVE-2021-47185, CVE-2021-47189, CVE-2022-0487, CVE-2022-4744, CVE-2022-48626, CVE-2023-0160, CVE-2023-1192, CVE-2023-28746, CVE-2023-35827, CVE-2023-52454, CVE-2023-52469, CVE-2023-52470, CVE-2023-52474, CVE-2023-52476, CVE-2023-52477, CVE-2023-52492, CVE-2023-52500, CVE-2023-52508, CVE-2023-52509, CVE-2023-52572, CVE-2023-52575, CVE-2023-52583, CVE-2023-52590, CVE-2023-52591, CVE-2023-52607, CVE-2023-52628, CVE-2023-6270, CVE-2023-6356, CVE-2023-6531, CVE-2023-6535, CVE-2023-6536, CVE-2023-7042, CVE-2023-7192, CVE-2024-22099, CVE-2024-26600, CVE-2024-26614, CVE-2024-26642, CVE-2024-26704, CVE-2024-26733 Jira References: PED-5759, SLE-13706, SLE-15131, SLE-15172, SLE-15176 Maintenance Incident: [SUSE:Maintenance:33221](https://smelt.suse.de/incident/33221/) Sources used: SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): kernel-syms-5.3.18-150300.59.158.1, kernel-obs-build-5.3.18-150300.59.158.1, kernel-source-5.3.18-150300.59.158.1, kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 SUSE Enterprise Storage 7.1 (src): kernel-syms-5.3.18-150300.59.158.1, kernel-obs-build-5.3.18-150300.59.158.1, kernel-source-5.3.18-150300.59.158.1, kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 SUSE Linux Enterprise Micro 5.1 (src): kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 SUSE Linux Enterprise Micro 5.2 (src): kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 SUSE Linux Enterprise Micro for Rancher 5.2 (src): kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 openSUSE Leap 15.3 (src): kernel-syms-5.3.18-150300.59.158.1, kernel-livepatch-SLE15-SP3_Update_43-1-150300.7.3.5, kernel-obs-build-5.3.18-150300.59.158.1, kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5, kernel-source-5.3.18-150300.59.158.1, kernel-obs-qa-5.3.18-150300.59.158.1 SUSE Linux Enterprise Live Patching 15-SP3 (src): kernel-livepatch-SLE15-SP3_Update_43-1-150300.7.3.5 SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): kernel-syms-5.3.18-150300.59.158.1, kernel-obs-build-5.3.18-150300.59.158.1, kernel-source-5.3.18-150300.59.158.1, kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): kernel-syms-5.3.18-150300.59.158.1, kernel-obs-build-5.3.18-150300.59.158.1, kernel-source-5.3.18-150300.59.158.1, kernel-default-base-5.3.18-150300.59.158.1.150300.18.92.5 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Done, closing.