{"id":"CVE-2025-39832","state":"PUBLISHED","title":"net/mlx5: Fix lockdep assertion on sync reset unload event","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix lockdep assertion on sync reset unload event\n\nFix lockdep assertion triggered during sync reset unload event. When the\nsync reset flow is initiated using the devlink reload fw_activate\noption, the PF already holds the devlink lock while handling unload\nevent. In this case, delegate sync reset unload event handling back to\nthe devlink callback process to avoid double-locking and resolve the\nlockdep warning.\n\nKernel log:\nWARNING: CPU: 9 PID: 1578 at devl_assert_locked+0x31/0x40\n[...]\nCall Trace:\n<TASK>\n mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core]\n mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core]\n process_one_work+0x222/0x640\n worker_thread+0x199/0x350\n kthread+0x10b/0x230\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x8e/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n</TASK>","publishedAt":"2025-09-16T13:08:49.513Z","updatedAt":"2026-05-11T21:37:17.968Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"ddac9d0fe2493dd550cbfc75eeaf31e9b6dac959","versionType":"git"},{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"0c87dba9ccd3801d3b503f0b4fd41be343af4f06","versionType":"git"},{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"06d897148e79638651800d851a69547b56b4be2e","versionType":"git"},{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"902a8bc23a24882200f57cadc270e15a2cfaf2bb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/devlink.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.104","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.45","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.16.5","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/devlink.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h"]}],"references":["https://git.kernel.org/stable/c/ddac9d0fe2493dd550cbfc75eeaf31e9b6dac959","https://git.kernel.org/stable/c/0c87dba9ccd3801d3b503f0b4fd41be343af4f06","https://git.kernel.org/stable/c/06d897148e79638651800d851a69547b56b4be2e","https://git.kernel.org/stable/c/902a8bc23a24882200f57cadc270e15a2cfaf2bb"],"weaknesses":["CWE-667"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39832.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39832","state":"PUBLISHED","datePublished":"2025-09-16T13:08:49.513Z","dateUpdated":"2026-05-11T21:37:17.968Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.140Z"},"containers":{"cna":{"title":"net/mlx5: Fix lockdep assertion on sync reset unload event","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix lockdep assertion on sync reset unload event\n\nFix lockdep assertion triggered during sync reset unload event. When the\nsync reset flow is initiated using the devlink reload fw_activate\noption, the PF already holds the devlink lock while handling unload\nevent. In this case, delegate sync reset unload event handling back to\nthe devlink callback process to avoid double-locking and resolve the\nlockdep warning.\n\nKernel log:\nWARNING: CPU: 9 PID: 1578 at devl_assert_locked+0x31/0x40\n[...]\nCall Trace:\n<TASK>\n mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core]\n mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core]\n process_one_work+0x222/0x640\n worker_thread+0x199/0x350\n kthread+0x10b/0x230\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x8e/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n</TASK>"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"ddac9d0fe2493dd550cbfc75eeaf31e9b6dac959","versionType":"git"},{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"0c87dba9ccd3801d3b503f0b4fd41be343af4f06","versionType":"git"},{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"06d897148e79638651800d851a69547b56b4be2e","versionType":"git"},{"version":"7a9770f1bfeaeddf5afabd3244e2c4c4966be37d","status":"affected","lessThan":"902a8bc23a24882200f57cadc270e15a2cfaf2bb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/devlink.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.104","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.45","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.16.5","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/devlink.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c","drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/ddac9d0fe2493dd550cbfc75eeaf31e9b6dac959"},{"url":"https://git.kernel.org/stable/c/0c87dba9ccd3801d3b503f0b4fd41be343af4f06"},{"url":"https://git.kernel.org/stable/c/06d897148e79638651800d851a69547b56b4be2e"},{"url":"https://git.kernel.org/stable/c/902a8bc23a24882200f57cadc270e15a2cfaf2bb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:37:17.968Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.12.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.16.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"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-2025-39832","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:18:09.564546Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-667","lang":"en","type":"CWE","description":"CWE-667 Improper Locking"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-14T18:22:56.913Z"}}]}}}