Description
In the Linux kernel, the following vulnerability has been resolved: remoteproc: core: Cleanup acquired resources when rproc_handle_resources() fails in rproc_attach() When rproc->state = RPROC_DETACHED and rproc_attach() is used to attach to the remote processor, if rproc_handle_resources() returns a failure, the resources allocated by imx_rproc_prepare() should be released, otherwise the following memory leak will occur. Since almost the same thing is done in imx_rproc_prepare() and rproc_resource_cleanup(), Function rproc_resource_cleanup() is able to deal with empty lists so it is better to fix the "goto" statements in rproc_attach(). replace the "unprepare_device" goto statement with "clean_up_resources" and get rid of the "unprepare_device" label. unreferenced object 0xffff0000861c5d00 (size 128): comm "kworker/u12:3", pid 59, jiffies 4294893509 (age 149.220s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 02 88 00 00 00 00 00 00 10 00 00 00 00 00 ............ backtrace: [<00000000f949fe18>] slab_post_alloc_hook+0x98/0x37c [<00000000adbfb3e7>] __kmem_cache_alloc_node+0x138/0x2e0 [<00000000521c0345>] kmalloc_trace+0x40/0x158 [<000000004e330a49>] rproc_mem_entry_init+0x60/0xf8 [<000000002815755e>] imx_rproc_prepare+0xe0/0x180 [<0000000003f61b4e>] rproc_boot+0x2ec/0x528 [<00000000e7e994ac>] rproc_add+0x124/0x17c [<0000000048594076>] imx_rproc_probe+0x4ec/0x5d4 [<00000000efc298a1>] platform_probe+0x68/0xd8 [<00000000110be6fe>] really_probe+0x110/0x27c [<00000000e245c0ae>] __driver_probe_device+0x78/0x12c [<00000000f61f6f5e>] driver_probe_device+0x3c/0x118 [<00000000a7874938>] __device_attach_driver+0xb8/0xf8 [<0000000065319e69>] bus_for_each_drv+0x84/0xe4 [<00000000db3eb243>] __device_attach+0xfc/0x18c [<0000000072e4e1a4>] device_initial_probe+0x14/0x20
Product status
10a3d4079eaea06472f1981152e2840e7232ffa9 (git) before c56d6ef2711ee51b54f160ad0f25a381561f0287
10a3d4079eaea06472f1981152e2840e7232ffa9 (git) before 82208ce9505abb057afdece7c62a14687c52c9ca
10a3d4079eaea06472f1981152e2840e7232ffa9 (git) before 9515d74c9d1ae7308a02e8bd4f894eb8137cf8df
10a3d4079eaea06472f1981152e2840e7232ffa9 (git) before 92776ca0ccfe78b9bfe847af206bad641fb11121
10a3d4079eaea06472f1981152e2840e7232ffa9 (git) before 5434d9f2fd68722b514c14b417b53a8af02c4d24
10a3d4079eaea06472f1981152e2840e7232ffa9 (git) before 7692c9fbedd9087dc9050903f58095915458d9b1
5.13
Any version before 5.13
5.15.186 (semver)
6.1.142 (semver)
6.6.95 (semver)
6.12.35 (semver)
6.15.4 (semver)
6.16 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/10/msg00008.html
git.kernel.org/...c/c56d6ef2711ee51b54f160ad0f25a381561f0287
git.kernel.org/...c/82208ce9505abb057afdece7c62a14687c52c9ca
git.kernel.org/...c/9515d74c9d1ae7308a02e8bd4f894eb8137cf8df
git.kernel.org/...c/92776ca0ccfe78b9bfe847af206bad641fb11121
git.kernel.org/...c/5434d9f2fd68722b514c14b417b53a8af02c4d24
git.kernel.org/...c/7692c9fbedd9087dc9050903f58095915458d9b1