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THREATINT
PUBLISHED

CVE-2025-38174

thunderbolt: Do not double dequeue a configuration request



Description

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Do not double dequeue a configuration request Some of our devices crash in tb_cfg_request_dequeue(): general protection fault, probably for non-canonical address 0xdead000000000122 CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Call Trace: <TASK> ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30 The circumstances are unclear, however, the theory is that tb_cfg_request_work() can be scheduled twice for a request: first time via frame.callback from ring_work() and second time from tb_cfg_request(). Both times kworkers will execute tb_cfg_request_dequeue(), which results in double list_del() from the ctl->request_queue (the list poison deference hints at it: 0xdead000000000122). Do not dequeue requests that don't have TB_CFG_REQUEST_ACTIVE bit set.

Reserved 2025-04-16 | Published 2025-07-04 | Updated 2025-07-04 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e49e994cd83705f7ca30eda1e304abddfd96a37a
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0a3011d47dbc92a33621861c423cb64833d7fe57
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2f62eda4d974c26bc595425eafd429067541f2c9
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 85286e634ebbaf9c0fb1cdf580add2f33fc7628c
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5a057f261539720165d03d85024da2b52e67f63d
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before eb2d5e794fb966b3ef8bde99eb8561446a53509f
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0771bcbe2f6e5d5f263cf466efe571d2754a46da
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cdb4feab2f39e75a66239e3a112beced279612a8
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0f73628e9da1ee39daf5f188190cdbaee5e0c98c
affected

Default status
affected

5.4.295
unaffected

5.10.239
unaffected

5.15.186
unaffected

6.1.142
unaffected

6.6.94
unaffected

6.12.33
unaffected

6.14.11
unaffected

6.15.2
unaffected

6.16-rc1
unaffected

References

git.kernel.org/...c/e49e994cd83705f7ca30eda1e304abddfd96a37a

git.kernel.org/...c/0a3011d47dbc92a33621861c423cb64833d7fe57

git.kernel.org/...c/2f62eda4d974c26bc595425eafd429067541f2c9

git.kernel.org/...c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c

git.kernel.org/...c/5a057f261539720165d03d85024da2b52e67f63d

git.kernel.org/...c/eb2d5e794fb966b3ef8bde99eb8561446a53509f

git.kernel.org/...c/0771bcbe2f6e5d5f263cf466efe571d2754a46da

git.kernel.org/...c/cdb4feab2f39e75a66239e3a112beced279612a8

git.kernel.org/...c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c

cve.org (CVE-2025-38174)

nvd.nist.gov (CVE-2025-38174)

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