{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-57979", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-27T02:04:28.912Z", "datePublished": "2025-02-27T02:07:06.168Z", "dateUpdated": "2026-05-23T15:56:29.386Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:56:29.386Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npps: Fix a use-after-free\n\nOn a board running ntpd and gpsd, I'm seeing a consistent use-after-free\nin sys_exit() from gpsd when rebooting:\n\n pps pps1: removed\n ------------[ cut here ]------------\n kobject: '(null)' (00000000db4bec24): is not initialized, yet kobject_put() is being called.\n WARNING: CPU: 2 PID: 440 at lib/kobject.c:734 kobject_put+0x120/0x150\n CPU: 2 UID: 299 PID: 440 Comm: gpsd Not tainted 6.11.0-rc6-00308-gb31c44928842 #1\n Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT)\n pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : kobject_put+0x120/0x150\n lr : kobject_put+0x120/0x150\n sp : ffffffc0803d3ae0\n x29: ffffffc0803d3ae0 x28: ffffff8042dc9738 x27: 0000000000000001\n x26: 0000000000000000 x25: ffffff8042dc9040 x24: ffffff8042dc9440\n x23: ffffff80402a4620 x22: ffffff8042ef4bd0 x21: ffffff80405cb600\n x20: 000000000008001b x19: ffffff8040b3b6e0 x18: 0000000000000000\n x17: 0000000000000000 x16: 0000000000000000 x15: 696e6920746f6e20\n x14: 7369203a29343263 x13: 205d303434542020 x12: 0000000000000000\n x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\n x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\n x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000\n Call trace:\n kobject_put+0x120/0x150\n cdev_put+0x20/0x3c\n __fput+0x2c4/0x2d8\n ____fput+0x1c/0x38\n task_work_run+0x70/0xfc\n do_exit+0x2a0/0x924\n do_group_exit+0x34/0x90\n get_signal+0x7fc/0x8c0\n do_signal+0x128/0x13b4\n do_notify_resume+0xdc/0x160\n el0_svc+0xd4/0xf8\n el0t_64_sync_handler+0x140/0x14c\n el0t_64_sync+0x190/0x194\n ---[ end trace 0000000000000000 ]---\n\n...followed by more symptoms of corruption, with similar stacks:\n\n refcount_t: underflow; use-after-free.\n kernel BUG at lib/list_debug.c:62!\n Kernel panic - not syncing: Oops - BUG: Fatal exception\n\nThis happens because pps_device_destruct() frees the pps_device with the\nembedded cdev immediately after calling cdev_del(), but, as the comment\nabove cdev_del() notes, fops for previously opened cdevs are still\ncallable even after cdev_del() returns. I think this bug has always\nbeen there: I can't explain why it suddenly started happening every time\nI reboot this particular board.\n\nIn commit d953e0e837e6 (\"pps: Fix a use-after free bug when\nunregistering a source.\"), George Spelvin suggested removing the\nembedded cdev. That seems like the simplest way to fix this, so I've\nimplemented his suggestion, using __register_chrdev() with pps_idr\nbecoming the source of truth for which minor corresponds to which\ndevice.\n\nBut now that pps_idr defines userspace visibility instead of cdev_add(),\nwe need to be sure the pps->dev refcount can't reach zero while\nuserspace can still find it again. So, the idr_remove() call moves to\npps_unregister_cdev(), and pps_idr now holds a reference to pps->dev.\n\n pps_core: source serial1 got cdev (251:1)\n <...>\n pps pps1: removed\n pps_core: unregistering pps1\n pps_core: deallocating pps1" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/pps/clients/pps-gpio.c", "drivers/pps/clients/pps-ktimer.c", "drivers/pps/clients/pps-ldisc.c", "drivers/pps/clients/pps_parport.c", "drivers/pps/kapi.c", "drivers/pps/kc.c", "drivers/pps/pps.c", "drivers/ptp/ptp_ocp.c", "include/linux/pps_kernel.h" ], "versions": [ { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "785c78ed0d39d1717cca3ef931d3e51337b5e90e", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "1a7735ab2cb9747518a7416fb5929e85442dec62", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "c4041b6b0a7a3def8cf3f3d6120ff337bc4c40f7", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "91932db1d96b2952299ce30c1c693d834d10ace6", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "cd3bbcb6b3a7caa5ce67de76723b6d8531fb7f64", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "7e5ee3281dc09014367f5112b6d566ba36ea2d49", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "85241f7de216f8298f6e48540ea13d7dcd100870", "status": "affected", "versionType": "git" }, { "version": "d953e0e837e65ecc1ddaa4f9560f7925878a0de6", "lessThan": "c79a39dc8d060b9e64e8b0fa9d245d44befeefbe", "status": "affected", "versionType": "git" }, { "version": "77327a71f9841b7dfa708195d1cb133d4ef4a989", "status": "affected", "versionType": "git" }, { "version": "cd59fb14918a6b20c1ac8be121fa6397b97b00cb", "status": "affected", "versionType": "git" }, { "version": "49626fbb0360332e40fd76a48cb2ba876d6134ad", "status": "affected", "versionType": "git" }, { "version": "3.2.40", "lessThan": "3.3", "status": "affected", "versionType": "semver" }, { "version": "3.4.87", "lessThan": "3.5", "status": "affected", "versionType": "semver" }, { "version": "3.8.1", "lessThan": "3.9", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/pps/clients/pps-gpio.c", "drivers/pps/clients/pps-ktimer.c", "drivers/pps/clients/pps-ldisc.c", "drivers/pps/clients/pps_parport.c", "drivers/pps/kapi.c", "drivers/pps/kc.c", "drivers/pps/pps.c", "drivers/ptp/ptp_ocp.c", "include/linux/pps_kernel.h" ], "versions": [ { "version": "3.9", "status": "affected" }, { "version": "0", "lessThan": "3.9", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.291", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.129", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.76", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.13", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.2", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "5.4.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "5.10.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "5.15.179" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.1.129" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.6.76" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.12.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.13.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2.40" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4.87" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/785c78ed0d39d1717cca3ef931d3e51337b5e90e" }, { "url": "https://git.kernel.org/stable/c/1a7735ab2cb9747518a7416fb5929e85442dec62" }, { "url": "https://git.kernel.org/stable/c/c4041b6b0a7a3def8cf3f3d6120ff337bc4c40f7" }, { "url": "https://git.kernel.org/stable/c/91932db1d96b2952299ce30c1c693d834d10ace6" }, { "url": "https://git.kernel.org/stable/c/cd3bbcb6b3a7caa5ce67de76723b6d8531fb7f64" }, { "url": "https://git.kernel.org/stable/c/7e5ee3281dc09014367f5112b6d566ba36ea2d49" }, { "url": "https://git.kernel.org/stable/c/85241f7de216f8298f6e48540ea13d7dcd100870" }, { "url": "https://git.kernel.org/stable/c/c79a39dc8d060b9e64e8b0fa9d245d44befeefbe" } ], "title": "pps: Fix a use-after-free", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-57979", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-27T18:14:45.747533Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:22:30.363Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:32:56.266Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T12:01:45.231Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] } }