{"schema_version":"1.7.5","id":"CVE-2025-38379","published":"2025-07-25T12:53:21.098Z","modified":"2026-07-15T01:48:53.563523280Z","related":["SUSE-SU-2026:0447-1","SUSE-SU-2026:0471-1","SUSE-SU-2026:0472-1","SUSE-SU-2026:0587-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20555-1","SUSE-SU-2026:20570-1","SUSE-SU-2026:20599-1","SUSE-SU-2026:20615-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1","openSUSE-SU-2026:20287-1"],"summary":"smb: client: fix warning when reconnecting channel","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix warning when reconnecting channel\n\nWhen reconnecting a channel in smb2_reconnect_server(), a dummy tcon\nis passed down to smb2_reconnect() with ->query_interface\nuninitialized, so we can't call queue_delayed_work() on it.\n\nFix the following warning by ensuring that we're queueing the delayed\nworker from correct tcon.\n\nWARNING: CPU: 4 PID: 1126 at kernel/workqueue.c:2498 __queue_delayed_work+0x1d2/0x200\nModules linked in: cifs cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]\nCPU: 4 UID: 0 PID: 1126 Comm: kworker/4:0 Not tainted 6.16.0-rc3 #5 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-4.fc42 04/01/2014\nWorkqueue: cifsiod smb2_reconnect_server [cifs]\nRIP: 0010:__queue_delayed_work+0x1d2/0x200\nCode: 41 5e 41 5f e9 7f ee ff ff 90 0f 0b 90 e9 5d ff ff ff bf 02 00\n00 00 e8 6c f3 07 00 89 c3 eb bd 90 0f 0b 90 e9 57 f> 0b 90 e9 65 fe\nff ff 90 0f 0b 90 e9 72 fe ff ff 90 0f 0b 90 e9\nRSP: 0018:ffffc900014afad8 EFLAGS: 00010003\nRAX: 0000000000000000 RBX: ffff888124d99988 RCX: ffffffff81399cc1\nRDX: dffffc0000000000 RSI: ffff888114326e00 RDI: ffff888124d999f0\nRBP: 000000000000ea60 R08: 0000000000000001 R09: ffffed10249b3331\nR10: ffff888124d9998f R11: 0000000000000004 R12: 0000000000000040\nR13: ffff888114326e00 R14: ffff888124d999d8 R15: ffff888114939020\nFS:  0000000000000000(0000) GS:ffff88829f7fe000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ffe7a2b4038 CR3: 0000000120a6f000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n <TASK>\n queue_delayed_work_on+0xb4/0xc0\n smb2_reconnect+0xb22/0xf50 [cifs]\n smb2_reconnect_server+0x413/0xd40 [cifs]\n ? __pfx_smb2_reconnect_server+0x10/0x10 [cifs]\n ? local_clock_noinstr+0xd/0xd0\n ? local_clock+0x15/0x30\n ? lock_release+0x29b/0x390\n process_one_work+0x4c5/0xa10\n ? __pfx_process_one_work+0x10/0x10\n ? __list_add_valid_or_report+0x37/0x120\n worker_thread+0x2f1/0x5a0\n ? __kthread_parkme+0xde/0x100\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x1fe/0x380\n ? kthread+0x10f/0x380\n ? __pfx_kthread+0x10/0x10\n ? local_clock_noinstr+0xd/0xd0\n ? ret_from_fork+0x1b/0x1f0\n ? local_clock+0x15/0x30\n ? lock_release+0x29b/0x390\n ? rcu_is_watching+0x20/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x15b/0x1f0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n </TASK>\nirq event stamp: 1116206\nhardirqs last  enabled at (1116205): [<ffffffff8143af42>] __up_console_sem+0x52/0x60\nhardirqs last disabled at (1116206): [<ffffffff81399f0e>] queue_delayed_work_on+0x6e/0xc0\nsoftirqs last  enabled at (1116138): [<ffffffffc04562fd>] __smb_send_rqst+0x42d/0x950 [cifs]\nsoftirqs last disabled at (1116136): [<ffffffff823d35e1>] release_sock+0x21/0xf0","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"202d7e838967dda02855cd925db7fd8c52c56af7"},{"fixed":"0cee638d92ac898d73eccc4e4bab70e9fc95946a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2c34f1e095a12be3674fb79d84d1af7896e49245"},{"fixed":"3f6932ef25378794894c3c1024092ad14da2d330"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4f81ee0af2b8c4089e308f7cb6b5ea5a4efe5b94"},{"fixed":"9d2b629a9dc5c72537645533af1cb11a7d34c4b1"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"42ca547b13a20e7cbb04fbdf8d5f089ac4bb35b7"},{"fixed":"3bbe46716092d8ef6b0df4b956f585c5cd0fc78e"}]}],"versions":["v6.6.96","v6.6.95","v6.12.36","v6.12.35","v6.15.5","v6.15.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38379.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.95"},{"fixed":"6.6.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.12.35"},{"fixed":"6.12.37"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.15.4"},{"fixed":"6.15.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38379.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0cee638d92ac898d73eccc4e4bab70e9fc95946a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3bbe46716092d8ef6b0df4b956f585c5cd0fc78e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3f6932ef25378794894c3c1024092ad14da2d330"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9d2b629a9dc5c72537645533af1cb11a7d34c4b1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38379.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38379"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38379.json"}}