{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-21953", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.790Z", "datePublished": "2025-04-01T15:46:54.712Z", "dateUpdated": "2026-05-11T21:09:44.295Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:09:44.295Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: cleanup mana struct after debugfs_remove()\n\nWhen on a MANA VM hibernation is triggered, as part of hibernate_snapshot(),\nmana_gd_suspend() and mana_gd_resume() are called. If during this\nmana_gd_resume(), a failure occurs with HWC creation, mana_port_debugfs\npointer does not get reinitialized and ends up pointing to older,\ncleaned-up dentry.\nFurther in the hibernation path, as part of power_down(), mana_gd_shutdown()\nis triggered. This call, unaware of the failures in resume, tries to cleanup\nthe already cleaned up mana_port_debugfs value and hits the following bug:\n\n[ 191.359296] mana 7870:00:00.0: Shutdown was called\n[ 191.359918] BUG: kernel NULL pointer dereference, address: 0000000000000098\n[ 191.360584] #PF: supervisor write access in kernel mode\n[ 191.361125] #PF: error_code(0x0002) - not-present page\n[ 191.361727] PGD 1080ea067 P4D 0\n[ 191.362172] Oops: Oops: 0002 [#1] SMP NOPTI\n[ 191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash Not tainted 6.14.0-rc5+ #2\n[ 191.363292] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024\n[ 191.364124] RIP: 0010:down_write+0x19/0x50\n[ 191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d\n[ 191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246\n[ 191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000\n[ 191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098\n[ 191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001\n[ 191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000\n[ 191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020\n[ 191.369549] FS: 00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000\n[ 191.370213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0\n[ 191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\n[ 191.372906] Call Trace:\n[ 191.373262] <TASK>\n[ 191.373621] ? show_regs+0x64/0x70\n[ 191.374040] ? __die+0x24/0x70\n[ 191.374468] ? page_fault_oops+0x290/0x5b0\n[ 191.374875] ? do_user_addr_fault+0x448/0x800\n[ 191.375357] ? exc_page_fault+0x7a/0x160\n[ 191.375971] ? asm_exc_page_fault+0x27/0x30\n[ 191.376416] ? down_write+0x19/0x50\n[ 191.376832] ? down_write+0x12/0x50\n[ 191.377232] simple_recursive_removal+0x4a/0x2a0\n[ 191.377679] ? __pfx_remove_one+0x10/0x10\n[ 191.378088] debugfs_remove+0x44/0x70\n[ 191.378530] mana_detach+0x17c/0x4f0\n[ 191.378950] ? __flush_work+0x1e2/0x3b0\n[ 191.379362] ? __cond_resched+0x1a/0x50\n[ 191.379787] mana_remove+0xf2/0x1a0\n[ 191.380193] mana_gd_shutdown+0x3b/0x70\n[ 191.380642] pci_device_shutdown+0x3a/0x80\n[ 191.381063] device_shutdown+0x13e/0x230\n[ 191.381480] kernel_power_off+0x35/0x80\n[ 191.381890] hibernate+0x3c6/0x470\n[ 191.382312] state_store+0xcb/0xd0\n[ 191.382734] kobj_attr_store+0x12/0x30\n[ 191.383211] sysfs_kf_write+0x3e/0x50\n[ 191.383640] kernfs_fop_write_iter+0x140/0x1d0\n[ 191.384106] vfs_write+0x271/0x440\n[ 191.384521] ksys_write+0x72/0xf0\n[ 191.384924] __x64_sys_write+0x19/0x20\n[ 191.385313] x64_sys_call+0x2b0/0x20b0\n[ 191.385736] do_syscall_64+0x79/0x150\n[ 191.386146] ? __mod_memcg_lruvec_state+0xe7/0x240\n[ 191.386676] ? __lruvec_stat_mod_folio+0x79/0xb0\n[ 191.387124] ? __pfx_lru_add+0x10/0x10\n[ 191.387515] ? queued_spin_unlock+0x9/0x10\n[ 191.387937] ? do_anonymous_page+0x33c/0xa00\n[ 191.388374] ? __handle_mm_fault+0xcf3/0x1210\n[ 191.388805] ? __count_memcg_events+0xbe/0x180\n[ 191.389235] ? handle_mm_fault+0xae/0x300\n[ 19\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/microsoft/mana/gdma_main.c", "drivers/net/ethernet/microsoft/mana/mana_en.c"], "versions": [{"version": "6607c17c6c5e029da03a90085db22daf518232bf", "lessThan": "a1466112fb6e819261272ad75e7db750a43b78bf", "status": "affected", "versionType": "git"}, {"version": "6607c17c6c5e029da03a90085db22daf518232bf", "lessThan": "3e64bb2ae7d9f2b3a8259d4d6b86ed1984d5460a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/microsoft/mana/gdma_main.c", "drivers/net/ethernet/microsoft/mana/mana_en.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.8", "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": "6.13", "versionEndExcluding": "6.13.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.14"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a1466112fb6e819261272ad75e7db750a43b78bf"}, {"url": "https://git.kernel.org/stable/c/3e64bb2ae7d9f2b3a8259d4d6b86ed1984d5460a"}], "title": "net: mana: cleanup mana struct after debugfs_remove()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-476", "lang": "en", "description": "CWE-476 NULL Pointer Dereference"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-10-01T17:16:37.291898Z", "id": "CVE-2025-21953", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T17:16:39.481Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2025-21953", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T17:16:37.291898Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T14:38:21.772Z"}}], "cna": {"title": "net: mana: cleanup mana struct after debugfs_remove()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6607c17c6c5e029da03a90085db22daf518232bf", "lessThan": "a1466112fb6e819261272ad75e7db750a43b78bf", "versionType": "git"}, {"status": "affected", "version": "6607c17c6c5e029da03a90085db22daf518232bf", "lessThan": "3e64bb2ae7d9f2b3a8259d4d6b86ed1984d5460a", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/microsoft/mana/gdma_main.c", "drivers/net/ethernet/microsoft/mana/mana_en.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"status": "unaffected", "version": "0", "lessThan": "6.13", "versionType": "semver"}, {"status": "unaffected", "version": "6.13.8", "versionType": "semver", "lessThanOrEqual": "6.13.*"}, {"status": "unaffected", "version": "6.14", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/microsoft/mana/gdma_main.c", "drivers/net/ethernet/microsoft/mana/mana_en.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/a1466112fb6e819261272ad75e7db750a43b78bf"}, {"url": "https://git.kernel.org/stable/c/3e64bb2ae7d9f2b3a8259d4d6b86ed1984d5460a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: cleanup mana struct after debugfs_remove()\n\nWhen on a MANA VM hibernation is triggered, as part of hibernate_snapshot(),\nmana_gd_suspend() and mana_gd_resume() are called. If during this\nmana_gd_resume(), a failure occurs with HWC creation, mana_port_debugfs\npointer does not get reinitialized and ends up pointing to older,\ncleaned-up dentry.\nFurther in the hibernation path, as part of power_down(), mana_gd_shutdown()\nis triggered. This call, unaware of the failures in resume, tries to cleanup\nthe already cleaned up mana_port_debugfs value and hits the following bug:\n\n[ 191.359296] mana 7870:00:00.0: Shutdown was called\n[ 191.359918] BUG: kernel NULL pointer dereference, address: 0000000000000098\n[ 191.360584] #PF: supervisor write access in kernel mode\n[ 191.361125] #PF: error_code(0x0002) - not-present page\n[ 191.361727] PGD 1080ea067 P4D 0\n[ 191.362172] Oops: Oops: 0002 [#1] SMP NOPTI\n[ 191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash Not tainted 6.14.0-rc5+ #2\n[ 191.363292] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024\n[ 191.364124] RIP: 0010:down_write+0x19/0x50\n[ 191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d\n[ 191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246\n[ 191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000\n[ 191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098\n[ 191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001\n[ 191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000\n[ 191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020\n[ 191.369549] FS: 00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000\n[ 191.370213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0\n[ 191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\n[ 191.372906] Call Trace:\n[ 191.373262] <TASK>\n[ 191.373621] ? show_regs+0x64/0x70\n[ 191.374040] ? __die+0x24/0x70\n[ 191.374468] ? page_fault_oops+0x290/0x5b0\n[ 191.374875] ? do_user_addr_fault+0x448/0x800\n[ 191.375357] ? exc_page_fault+0x7a/0x160\n[ 191.375971] ? asm_exc_page_fault+0x27/0x30\n[ 191.376416] ? down_write+0x19/0x50\n[ 191.376832] ? down_write+0x12/0x50\n[ 191.377232] simple_recursive_removal+0x4a/0x2a0\n[ 191.377679] ? __pfx_remove_one+0x10/0x10\n[ 191.378088] debugfs_remove+0x44/0x70\n[ 191.378530] mana_detach+0x17c/0x4f0\n[ 191.378950] ? __flush_work+0x1e2/0x3b0\n[ 191.379362] ? __cond_resched+0x1a/0x50\n[ 191.379787] mana_remove+0xf2/0x1a0\n[ 191.380193] mana_gd_shutdown+0x3b/0x70\n[ 191.380642] pci_device_shutdown+0x3a/0x80\n[ 191.381063] device_shutdown+0x13e/0x230\n[ 191.381480] kernel_power_off+0x35/0x80\n[ 191.381890] hibernate+0x3c6/0x470\n[ 191.382312] state_store+0xcb/0xd0\n[ 191.382734] kobj_attr_store+0x12/0x30\n[ 191.383211] sysfs_kf_write+0x3e/0x50\n[ 191.383640] kernfs_fop_write_iter+0x140/0x1d0\n[ 191.384106] vfs_write+0x271/0x440\n[ 191.384521] ksys_write+0x72/0xf0\n[ 191.384924] __x64_sys_write+0x19/0x20\n[ 191.385313] x64_sys_call+0x2b0/0x20b0\n[ 191.385736] do_syscall_64+0x79/0x150\n[ 191.386146] ? __mod_memcg_lruvec_state+0xe7/0x240\n[ 191.386676] ? __lruvec_stat_mod_folio+0x79/0xb0\n[ 191.387124] ? __pfx_lru_add+0x10/0x10\n[ 191.387515] ? queued_spin_unlock+0x9/0x10\n[ 191.387937] ? do_anonymous_page+0x33c/0xa00\n[ 191.388374] ? __handle_mm_fault+0xcf3/0x1210\n[ 191.388805] ? __count_memcg_events+0xbe/0x180\n[ 191.389235] ? handle_mm_fault+0xae/0x300\n[ 19\n---truncated---"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13.8", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.14", "versionStartIncluding": "6.13"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:09:44.295Z"}}}, "cveMetadata": {"cveId": "CVE-2025-21953", "state": "PUBLISHED", "dateUpdated": "2026-05-11T21:09:44.295Z", "dateReserved": "2024-12-29T08:45:45.790Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-01T15:46:54.712Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0A20D4D7-B329-4C68-B662-76062EA7DCF0", "versionEndExcluding": "6.13.8", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*", "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*", "matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*", "matchCriteriaId": "D3D6550E-6679-4560-902D-AF52DCFE905B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*", "matchCriteriaId": "45B90F6B-BEC7-4D4E-883A-9DBADE021750", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*", "matchCriteriaId": "1759FFB7-531C-41B1-9AE1-FD3D80E0D920", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: cleanup mana struct after debugfs_remove()\n\nWhen on a MANA VM hibernation is triggered, as part of hibernate_snapshot(),\nmana_gd_suspend() and mana_gd_resume() are called. If during this\nmana_gd_resume(), a failure occurs with HWC creation, mana_port_debugfs\npointer does not get reinitialized and ends up pointing to older,\ncleaned-up dentry.\nFurther in the hibernation path, as part of power_down(), mana_gd_shutdown()\nis triggered. This call, unaware of the failures in resume, tries to cleanup\nthe already cleaned up mana_port_debugfs value and hits the following bug:\n\n[ 191.359296] mana 7870:00:00.0: Shutdown was called\n[ 191.359918] BUG: kernel NULL pointer dereference, address: 0000000000000098\n[ 191.360584] #PF: supervisor write access in kernel mode\n[ 191.361125] #PF: error_code(0x0002) - not-present page\n[ 191.361727] PGD 1080ea067 P4D 0\n[ 191.362172] Oops: Oops: 0002 [#1] SMP NOPTI\n[ 191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash Not tainted 6.14.0-rc5+ #2\n[ 191.363292] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024\n[ 191.364124] RIP: 0010:down_write+0x19/0x50\n[ 191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d\n[ 191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246\n[ 191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000\n[ 191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098\n[ 191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001\n[ 191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000\n[ 191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020\n[ 191.369549] FS: 00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000\n[ 191.370213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0\n[ 191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\n[ 191.372906] Call Trace:\n[ 191.373262] <TASK>\n[ 191.373621] ? show_regs+0x64/0x70\n[ 191.374040] ? __die+0x24/0x70\n[ 191.374468] ? page_fault_oops+0x290/0x5b0\n[ 191.374875] ? do_user_addr_fault+0x448/0x800\n[ 191.375357] ? exc_page_fault+0x7a/0x160\n[ 191.375971] ? asm_exc_page_fault+0x27/0x30\n[ 191.376416] ? down_write+0x19/0x50\n[ 191.376832] ? down_write+0x12/0x50\n[ 191.377232] simple_recursive_removal+0x4a/0x2a0\n[ 191.377679] ? __pfx_remove_one+0x10/0x10\n[ 191.378088] debugfs_remove+0x44/0x70\n[ 191.378530] mana_detach+0x17c/0x4f0\n[ 191.378950] ? __flush_work+0x1e2/0x3b0\n[ 191.379362] ? __cond_resched+0x1a/0x50\n[ 191.379787] mana_remove+0xf2/0x1a0\n[ 191.380193] mana_gd_shutdown+0x3b/0x70\n[ 191.380642] pci_device_shutdown+0x3a/0x80\n[ 191.381063] device_shutdown+0x13e/0x230\n[ 191.381480] kernel_power_off+0x35/0x80\n[ 191.381890] hibernate+0x3c6/0x470\n[ 191.382312] state_store+0xcb/0xd0\n[ 191.382734] kobj_attr_store+0x12/0x30\n[ 191.383211] sysfs_kf_write+0x3e/0x50\n[ 191.383640] kernfs_fop_write_iter+0x140/0x1d0\n[ 191.384106] vfs_write+0x271/0x440\n[ 191.384521] ksys_write+0x72/0xf0\n[ 191.384924] __x64_sys_write+0x19/0x20\n[ 191.385313] x64_sys_call+0x2b0/0x20b0\n[ 191.385736] do_syscall_64+0x79/0x150\n[ 191.386146] ? __mod_memcg_lruvec_state+0xe7/0x240\n[ 191.386676] ? __lruvec_stat_mod_folio+0x79/0xb0\n[ 191.387124] ? __pfx_lru_add+0x10/0x10\n[ 191.387515] ? queued_spin_unlock+0x9/0x10\n[ 191.387937] ? do_anonymous_page+0x33c/0xa00\n[ 191.388374] ? __handle_mm_fault+0xcf3/0x1210\n[ 191.388805] ? __count_memcg_events+0xbe/0x180\n[ 191.389235] ? handle_mm_fault+0xae/0x300\n[ 19\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: mana: cleanup struct mana despu\u00e9s de debugfs_remove(). Cuando se activa la hibernaci\u00f3n en una m\u00e1quina virtual MANA, como parte de hibernate_snapshot(), se invocan mana_gd_suspend() y mana_gd_resume(). Si durante este mana_gd_resume() se produce un fallo en la creaci\u00f3n de HWC, el puntero mana_port_debugfs no se reinicializa y termina apuntando a una dentry anterior y limpiada. M\u00e1s adelante en la ruta de hibernaci\u00f3n, como parte de power_down(), se activa mana_gd_shutdown(). Esta llamada, sin tener conocimiento de los fallos en la reanudaci\u00f3n, intenta limpiar el valor mana_port_debugfs ya limpiado y se encuentra con el siguiente error: [ 191.359296] mana 7870:00:00.0: Se llam\u00f3 al apagado [ 191.359918] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000098 [ 191.360584] #PF: acceso de escritura del supervisor en modo kernel [ 191.361125] #PF: error_code(0x0002) - p\u00e1gina no presente [ 191.361727] PGD 1080ea067 P4D 0 [ 191.362172] Oops: Oops: 0002 [#1] SMP NOPTI [ 191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash No contaminado 6.14.0-rc5+ #2 [ 191.363292] Nombre del hardware: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 21/11/2024 [ 191.364124] RIP: 0010:down_write+0x19/0x50 [ 191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d [ 191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246 [ 191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000 [ 191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098 [ 191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001 [ 191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000 [ 191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020 [ 191.369549] FS: 00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000 [ 191.370213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0 [ 191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 [ 191.372906] Call Trace: [ 191.373262] [ 191.373621] ? show_regs+0x64/0x70 [ 191.374040] ? __die+0x24/0x70 [ 191.374468] ? page_fault_oops+0x290/0x5b0 [ 191.374875] ? do_user_addr_fault+0x448/0x800 [ 191.375357] ? exc_page_fault+0x7a/0x160 [ 191.375971] ? asm_exc_page_fault+0x27/0x30 [ 191.376416] ? down_write+0x19/0x50 [ 191.376832] ? down_write+0x12/0x50 [ 191.377232] simple_recursive_removal+0x4a/0x2a0 [ 191.377679] ? __pfx_remove_one+0x10/0x10 [ 191.378088] debugfs_remove+0x44/0x70 [ 191.378530] mana_detach+0x17c/0x4f0 [ 191.378950] ? __flush_work+0x1e2/0x3b0 [ 191.379362] ? __cond_resched+0x1a/0x50 [ 191.379787] mana_remove+0xf2/0x1a0 [ 191.380193] mana_gd_shutdown+0x3b/0x70 [ 191.380642] pci_device_shutdown+0x3a/0x80 [ 191.381063] device_shutdown+0x13e/0x230 [ 191.381480] kernel_power_off+0x35/0x80 [ 191.381890] hibernate+0x3c6/0x470 [ 191.382312] state_store+0xcb/0xd0 [ 191.382734] kobj_attr_store+0x12/0x30 [ 191.383211] sysfs_kf_write+0x3e/0x50 [ 191.383640] kernfs_fop_write_iter+0x140/0x1d0 [ 191.384106] vfs_write+0x271/0x440 [ 191.384521] ksys_write+0x72/0xf0 [ 191.384924] __x64_sys_write+0x19/0x20 [ 191.385313] x64_sys_call+0x2b0/0x20b0 [ 191.385736] do_syscall_64+0x79/0x150 [ 191.386146] ? __mod_memcg_lruvec_state+0xe7/0x240 [ 191.386676] ? __lruvec_stat_mod_folio+0x79/0xb0 [ 191.387124] ? __pfx_lru_add+0x10/0x10 [ 191.387515] ? queued_spin_unlock+0x9/0x10 [ 191.387937] ? do_anonymous_page+0x33c/0xa00 [ 191.388374] ? __handle_mm_fault+0xcf3/0x1210 [ 191.388805] ? __count_memcg_events+0xbe/0x180 [ 191.389235] ? handle_mm_fault+0xae/0x300 [ 19 ---truncado---"}], "id": "CVE-2025-21953", "lastModified": "2025-10-01T18:15:39.797", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-04-01T16:15:26.513", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3e64bb2ae7d9f2b3a8259d4d6b86ed1984d5460a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a1466112fb6e819261272ad75e7db750a43b78bf"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: net: mana: cleanup mana struct after debugfs_remove()", "id": "2356626", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2356626"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: mana: cleanup mana struct after debugfs_remove()\nWhen on a MANA VM hibernation is triggered, as part of hibernate_snapshot(),\nmana_gd_suspend() and mana_gd_resume() are called. If during this\nmana_gd_resume(), a failure occurs with HWC creation, mana_port_debugfs\npointer does not get reinitialized and ends up pointing to older,\ncleaned-up dentry.\nFurther in the hibernation path, as part of power_down(), mana_gd_shutdown()\nis triggered. This call, unaware of the failures in resume, tries to cleanup\nthe already cleaned up mana_port_debugfs value and hits the following bug:\n[ 191.359296] mana 7870:00:00.0: Shutdown was called\n[ 191.359918] BUG: kernel NULL pointer dereference, address: 0000000000000098\n[ 191.360584] #PF: supervisor write access in kernel mode\n[ 191.361125] #PF: error_code(0x0002) - not-present page\n[ 191.361727] PGD 1080ea067 P4D 0\n[ 191.362172] Oops: Oops: 0002 [#1] SMP NOPTI\n[ 191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash Not tainted 6.14.0-rc5+ #2\n[ 191.363292] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024\n[ 191.364124] RIP: 0010:down_write+0x19/0x50\n[ 191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d\n[ 191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246\n[ 191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000\n[ 191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098\n[ 191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001\n[ 191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000\n[ 191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020\n[ 191.369549] FS: 00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000\n[ 191.370213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0\n[ 191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\n[ 191.372906] Call Trace:\n[ 191.373262] <TASK>\n[ 191.373621] ? show_regs+0x64/0x70\n[ 191.374040] ? __die+0x24/0x70\n[ 191.374468] ? page_fault_oops+0x290/0x5b0\n[ 191.374875] ? do_user_addr_fault+0x448/0x800\n[ 191.375357] ? exc_page_fault+0x7a/0x160\n[ 191.375971] ? asm_exc_page_fault+0x27/0x30\n[ 191.376416] ? down_write+0x19/0x50\n[ 191.376832] ? down_write+0x12/0x50\n[ 191.377232] simple_recursive_removal+0x4a/0x2a0\n[ 191.377679] ? __pfx_remove_one+0x10/0x10\n[ 191.378088] debugfs_remove+0x44/0x70\n[ 191.378530] mana_detach+0x17c/0x4f0\n[ 191.378950] ? __flush_work+0x1e2/0x3b0\n[ 191.379362] ? __cond_resched+0x1a/0x50\n[ 191.379787] mana_remove+0xf2/0x1a0\n[ 191.380193] mana_gd_shutdown+0x3b/0x70\n[ 191.380642] pci_device_shutdown+0x3a/0x80\n[ 191.381063] device_shutdown+0x13e/0x230\n[ 191.381480] kernel_power_off+0x35/0x80\n[ 191.381890] hibernate+0x3c6/0x470\n[ 191.382312] state_store+0xcb/0xd0\n[ 191.382734] kobj_attr_store+0x12/0x30\n[ 191.383211] sysfs_kf_write+0x3e/0x50\n[ 191.383640] kernfs_fop_write_iter+0x140/0x1d0\n[ 191.384106] vfs_write+0x271/0x440\n[ 191.384521] ksys_write+0x72/0xf0\n[ 191.384924] __x64_sys_write+0x19/0x20\n[ 191.385313] x64_sys_call+0x2b0/0x20b0\n[ 191.385736] do_syscall_64+0x79/0x150\n[ 191.386146] ? __mod_memcg_lruvec_state+0xe7/0x240\n[ 191.386676] ? __lruvec_stat_mod_folio+0x79/0xb0\n[ 191.387124] ? __pfx_lru_add+0x10/0x10\n[ 191.387515] ? queued_spin_unlock+0x9/0x10\n[ 191.387937] ? do_anonymous_page+0x33c/0xa00\n[ 191.388374] ? __handle_mm_fault+0xcf3/0x1210\n[ 191.388805] ? __count_memcg_events+0xbe/0x180\n[ 191.389235] ? handle_mm_fault+0xae/0x300\n[ 19\n---truncated---"], "name": "CVE-2025-21953", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21953\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21953\nhttps://lore.kernel.org/linux-cve-announce/2025040143-CVE-2025-21953-57ef@gregkh/T"], "threat_severity": "Low"}

{}