{"cve":"CVE-2025-38379","nvd":{"published":"2025-07-25T13:15:27.033","modified":"2026-07-30T06:23:11.227","status":"Modified","description":"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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/0cee638d92ac898d73eccc4e4bab70e9fc95946a","https://git.kernel.org/stable/c/3bbe46716092d8ef6b0df4b956f585c5cd0fc78e","https://git.kernel.org/stable/c/3f6932ef25378794894c3c1024092ad14da2d330","https://git.kernel.org/stable/c/9d2b629a9dc5c72537645533af1cb11a7d34c4b1"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:05:46.678065081+00:00"},"epss":{"cve":"CVE-2025-38379","score":0.00411,"percentile":0.35368,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}