{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-38619", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.029Z", "datePublished": "2025-08-22T16:00:23.564Z", "dateUpdated": "2026-08-05T12:03:35.052Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:03:35.052Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ti: j721e-csi2rx: fix list_del corruption\n\nIf ti_csi2rx_start_dma() fails in ti_csi2rx_dma_callback(), the buffer is\nmarked done with VB2_BUF_STATE_ERROR but is not removed from the DMA queue.\nThis causes the same buffer to be retried in the next iteration, resulting\nin a double list_del() and eventual list corruption.\n\nFix this by removing the buffer from the queue before calling\nvb2_buffer_done() on error.\n\nThis resolves a crash due to list_del corruption:\n[ 37.811243] j721e-csi2rx 30102000.ticsi2rx: Failed to queue the next buffer for DMA\n[ 37.832187] slab kmalloc-2k start ffff00000255b000 pointer offset 1064 size 2048\n[ 37.839761] list_del corruption. next->prev should be ffff00000255bc28, but was ffff00000255d428. (next=ffff00000255b428)\n[ 37.850799] ------------[ cut here ]------------\n[ 37.855424] kernel BUG at lib/list_debug.c:65!\n[ 37.859876] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP\n[ 37.866061] Modules linked in: i2c_dev usb_f_rndis u_ether libcomposite dwc3 udc_core usb_common aes_ce_blk aes_ce_cipher ghash_ce gf128mul sha1_ce cpufreq_dt dwc3_am62 phy_gmii_sel sa2ul\n[ 37.882830] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.16.0-rc3+ #28 VOLUNTARY\n[ 37.890851] Hardware name: Bosch STLA-GSRV2-B0 (DT)\n[ 37.895737] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 37.902703] pc : __list_del_entry_valid_or_report+0xdc/0x114\n[ 37.908390] lr : __list_del_entry_valid_or_report+0xdc/0x114\n[ 37.914059] sp : ffff800080003db0\n[ 37.917375] x29: ffff800080003db0 x28: 0000000000000007 x27: ffff800080e50000\n[ 37.924521] x26: 0000000000000000 x25: ffff0000016abb50 x24: dead000000000122\n[ 37.931666] x23: ffff0000016abb78 x22: ffff0000016ab080 x21: ffff800080003de0\n[ 37.938810] x20: ffff00000255bc00 x19: ffff00000255b800 x18: 000000000000000a\n[ 37.945956] x17: 20747562202c3832 x16: 6362353532303030 x15: 0720072007200720\n[ 37.953101] x14: 0720072007200720 x13: 0720072007200720 x12: 00000000ffffffea\n[ 37.960248] x11: ffff800080003b18 x10: 00000000ffffefff x9 : ffff800080f5b568\n[ 37.967396] x8 : ffff800080f5b5c0 x7 : 0000000000017fe8 x6 : c0000000ffffefff\n[ 37.974542] x5 : ffff00000fea6688 x4 : 0000000000000000 x3 : 0000000000000000\n[ 37.981686] x2 : 0000000000000000 x1 : ffff800080ef2b40 x0 : 000000000000006d\n[ 37.988832] Call trace:\n[ 37.991281] __list_del_entry_valid_or_report+0xdc/0x114 (P)\n[ 37.996959] ti_csi2rx_dma_callback+0x84/0x1c4\n[ 38.001419] udma_vchan_complete+0x1e0/0x344\n[ 38.005705] tasklet_action_common+0x118/0x310\n[ 38.010163] tasklet_action+0x30/0x3c\n[ 38.013832] handle_softirqs+0x10c/0x2e0\n[ 38.017761] __do_softirq+0x14/0x20\n[ 38.021256] ____do_softirq+0x10/0x20\n[ 38.024931] call_on_irq_stack+0x24/0x60\n[ 38.028873] do_softirq_own_stack+0x1c/0x40\n[ 38.033064] __irq_exit_rcu+0x130/0x15c\n[ 38.036909] irq_exit_rcu+0x10/0x20\n[ 38.040403] el1_interrupt+0x38/0x60\n[ 38.043987] el1h_64_irq_handler+0x18/0x24\n[ 38.048091] el1h_64_irq+0x6c/0x70\n[ 38.051501] default_idle_call+0x34/0xe0 (P)\n[ 38.055783] do_idle+0x1f8/0x250\n[ 38.059021] cpu_startup_entry+0x34/0x3c\n[ 38.062951] rest_init+0xb4/0xc0\n[ 38.066186] console_on_rootfs+0x0/0x6c\n[ 38.070031] __primary_switched+0x88/0x90\n[ 38.074059] Code: b00037e0 91378000 f9400462 97e9bf49 (d4210000)\n[ 38.080168] ---[ end trace 0000000000000000 ]---\n[ 38.084795] Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt\n[ 38.092197] SMP: stopping secondary CPUs\n[ 38.096139] Kernel Offset: disabled\n[ 38.099631] CPU features: 0x0000,00002000,02000801,0400420b\n[ 38.105202] Memory Limit: none\n[ 38.108260] ---[ end Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt ]---" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerability is reached through V4L2 ioctls (REQBUFS/QBUF/STREAMON) on the local `/dev/videoN` node exported by the TI J721E/AM62 CSI-2 receiver; no network or physical interaction is needed since the triggering error path is driven by local memory pressure, not by the camera link.\nAC:L - The required `ti_csi2rx_start_dma()` failure stems from `GFP_NOWAIT` descriptor allocations in k3-udma that fail readily under memory pressure an unprivileged process can generate, and the attacker also controls the number of concurrently submitted descriptors via the user-chosen buffer count, so the error path can be provoked repeatedly and reliably.\nPR:L - Only access to the video device node (typically the `video` group on embedded/automotive Linux, or a camera-capable app sandbox on Android) plus ordinary streaming ioctls is needed; no capability check such as CAP_SYS_ADMIN exists anywhere along the path.\nUI:N - The attacking process performs every step itself — opening the device, allocating and queueing buffers, starting the stream, and applying memory pressure — with no action from any other user.\nS:U - The corrupted list heads and vb2 buffer structures live entirely within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The cross-linked `queue`/`submitted` lists cause traversal through stale nodes in reused kmalloc-2k slab memory, and a buffer released to userspace remains an active DMA target, so the corruption is leverageable to read kernel memory contents adjacent to or reallocated over the freed buffer.\nI:H - Double `list_del()`/`list_add()` on an already-linked node performs unlink writes of pointer values into freed and reallocated slab objects, and the DMA engine writes into a buffer vb2 has already handed back — a heap-groomable write primitive suitable for control-flow hijacking.\nA:H - The reported crash is a `BUG()` in `__list_del_entry_valid_or_report()` taken from a tasklet, which is a fatal exception in interrupt context and panics the machine outright; the persistent-failure variant instead spins forever holding `dma->lock` with IRQs disabled, hanging the CPU." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c" ], "versions": [ { "version": "b4a3d877dc92963a4db16ddb71df3d333c0d40bd", "lessThan": "68e5579f4de12207b23c41b44a4c0778b6c2858f", "status": "affected", "versionType": "git" }, { "version": "b4a3d877dc92963a4db16ddb71df3d333c0d40bd", "lessThan": "92d0188f36ca8082af7989d743eb5b44c2d259f7", "status": "affected", "versionType": "git" }, { "version": "b4a3d877dc92963a4db16ddb71df3d333c0d40bd", "lessThan": "a4a8cb0889927d59ebd839458c8f038bc5298ef9", "status": "affected", "versionType": "git" }, { "version": "b4a3d877dc92963a4db16ddb71df3d333c0d40bd", "lessThan": "ae42c6fe531425ef2f47e82f96851427d24bbf6b", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c" ], "versions": [ { "version": "6.7", "status": "affected" }, { "version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.42", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.15.10", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.16.1", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.15.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.16.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/68e5579f4de12207b23c41b44a4c0778b6c2858f" }, { "url": "https://git.kernel.org/stable/c/92d0188f36ca8082af7989d743eb5b44c2d259f7" }, { "url": "https://git.kernel.org/stable/c/a4a8cb0889927d59ebd839458c8f038bc5298ef9" }, { "url": "https://git.kernel.org/stable/c/ae42c6fe531425ef2f47e82f96851427d24bbf6b" } ], "title": "media: ti: j721e-csi2rx: fix list_del corruption", "x_generator": { "engine": "bippy-1.2.0" } } } }