CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-26937 – drm/i915/gt: Reset queue_priority_hint on parking
https://notcve.org/view.php?id=CVE-2024-26937
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Reset queue_priority_hint on parking Originally, with strict in order execution, we could complete execution only when the queue was empty. Preempt-to-busy allows replacement of an active request that may complete before the preemption is processed by HW. If that happens, the request is retired from the queue, but the queue_priority_hint remains set, preventing direct submission until after the next CS interrupt is processed. This preempt-to-busy race can be triggered by the heartbeat, which will also act as the power-management barrier and upon completion allow us to idle the HW. We may process the completion of the heartbeat, and begin parking the engine before the CS event that restores the queue_priority_hint, causing us to fail the assertion that it is MIN. <3>[ 166.210729] __engine_park:283 GEM_BUG_ON(engine->sched_engine->queue_priority_hint != (-((int)(~0U >> 1)) - 1)) <0>[ 166.210781] Dumping ftrace buffer: <0>[ 166.210795] --------------------------------- ... <0>[ 167.302811] drm_fdin-1097 2..s1. 165741070us : trace_ports: 0000:00:02.0 rcs0: promote { ccid:20 1217:2 prio 0 } <0>[ 167.302861] drm_fdin-1097 2d.s2. 165741072us : execlists_submission_tasklet: 0000:00:02.0 rcs0: preempting last=1217:2, prio=0, hint=2147483646 <0>[ 167.302928] drm_fdin-1097 2d.s2. 165741072us : __i915_request_unsubmit: 0000:00:02.0 rcs0: fence 1217:2, current 0 <0>[ 167.302992] drm_fdin-1097 2d.s2. 165741073us : __i915_request_submit: 0000:00:02.0 rcs0: fence 3:4660, current 4659 <0>[ 167.303044] drm_fdin-1097 2d.s1. 165741076us : execlists_submission_tasklet: 0000:00:02.0 rcs0: context:3 schedule-in, ccid:40 <0>[ 167.303095] drm_fdin-1097 2d.s1. 165741077us : trace_ports: 0000:00:02.0 rcs0: submit { ccid:40 3:4660* prio 2147483646 } <0>[ 167.303159] kworker/-89 11..... 165741139us : i915_request_retire.part.0: 0000:00:02.0 rcs0: fence c90:2, current 2 <0>[ 167.303208] kworker/-89 11..... 165741148us : __intel_context_do_unpin: 0000:00:02.0 rcs0: context:c90 unpin <0>[ 167.303272] kworker/-89 11..... 165741159us : i915_request_retire.part.0: 0000:00:02.0 rcs0: fence 1217:2, current 2 <0>[ 167.303321] kworker/-89 11..... 165741166us : __intel_context_do_unpin: 0000:00:02.0 rcs0: context:1217 unpin <0>[ 167.303384] kworker/-89 11..... 165741170us : i915_request_retire.part.0: 0000:00:02.0 rcs0: fence 3:4660, current 4660 <0>[ 167.303434] kworker/-89 11d..1. 165741172us : __intel_context_retire: 0000:00:02.0 rcs0: context:1216 retire runtime: { total:56028ns, avg:56028ns } <0>[ 167.303484] kworker/-89 11..... 165741198us : __engine_park: 0000:00:02.0 rcs0: parked <0>[ 167.303534] <idle>-0 5d.H3. 165741207us : execlists_irq_handler: 0000:00:02.0 rcs0: semaphore yield: 00000040 <0>[ 167.303583] kworker/-89 11..... 165741397us : __intel_context_retire: 0000:00:02.0 rcs0: context:1217 retire runtime: { total:325575ns, avg:0ns } <0>[ 167.303756] kworker/-89 11..... 165741777us : __intel_context_retire: 0000:00:02.0 rcs0: context:c90 retire runtime: { total:0ns, avg:0ns } <0>[ 167.303806] kworker/-89 11..... 165742017us : __engine_park: __engine_park:283 GEM_BUG_ON(engine->sched_engine->queue_priority_hint ! • https://git.kernel.org/stable/c/22b7a426bbe1ebe1520f92da4cd1617d1e1b5fc4 https://git.kernel.org/stable/c/67944e6db656bf1e986aa2a359f866f851091f8a https://git.kernel.org/stable/c/fe34587acc995e7b1d7a5d3444a0736721ec32b3 https://git.kernel.org/stable/c/ac9b6b3e8d1237136c8ebf0fa1ce037dd7e2948f https://git.kernel.org/stable/c/7eab7b021835ae422c38b968d5cc60e99408fb62 https://git.kernel.org/stable/c/3b031e4fcb2740988143c303f81f69f18ce86325 https://git.kernel.org/stable/c/aed034866a08bb7e6e34d50a5629a4d23fe83703 https://git.kernel.org/stable/c/8fd9b0ce8c26533fe4d5d15ea15bbf7b9 •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2024-26935 – scsi: core: Fix unremoved procfs host directory regression
https://notcve.org/view.php?id=CVE-2024-26935
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix unremoved procfs host directory regression Commit fc663711b944 ("scsi: core: Remove the /proc/scsi/${proc_name} directory earlier") fixed a bug related to modules loading/unloading, by adding a call to scsi_proc_hostdir_rm() on scsi_remove_host(). But that led to a potential duplicate call to the hostdir_rm() routine, since it's also called from scsi_host_dev_release(). That triggered a regression report, which was then fixed by commit be03df3d4bfe ("scsi: core: Fix a procfs host directory removal regression"). The fix just dropped the hostdir_rm() call from dev_release(). But it happens that this proc directory is created on scsi_host_alloc(), and that function "pairs" with scsi_host_dev_release(), while scsi_remove_host() pairs with scsi_add_host(). In other words, it seems the reason for removing the proc directory on dev_release() was meant to cover cases in which a SCSI host structure was allocated, but the call to scsi_add_host() didn't happen. • https://git.kernel.org/stable/c/88c3d3bb6469cea929ac68fd326bdcbefcdfdd83 https://git.kernel.org/stable/c/68c665bb185037e7eb66fb792c61da9d7151e99c https://git.kernel.org/stable/c/2a764d55e938743efa7c2cba7305633bcf227f09 https://git.kernel.org/stable/c/7e0ae8667fcdd99d1756922e1140cac75f5fa279 https://git.kernel.org/stable/c/be03df3d4bfe7e8866d4aa43d62e648ffe884f5f https://git.kernel.org/stable/c/73f030d4ef6d1ad17f824a0a2eb637ef7a9c7d51 https://git.kernel.org/stable/c/0053f15d50d50c9312d8ab9c11e2e405812dfcac https://git.kernel.org/stable/c/5c2386ba80e779a92ec3bb64ccadbedd8 •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2024-26934 – USB: core: Fix deadlock in usb_deauthorize_interface()
https://notcve.org/view.php?id=CVE-2024-26934
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix deadlock in usb_deauthorize_interface() Among the attribute file callback routines in drivers/usb/core/sysfs.c, the interface_authorized_store() function is the only one which acquires a device lock on an ancestor device: It calls usb_deauthorize_interface(), which locks the interface's parent USB device. The will lead to deadlock if another process already owns that lock and tries to remove the interface, whether through a configuration change or because the device has been disconnected. As part of the removal procedure, device_del() waits for all ongoing sysfs attribute callbacks to complete. But usb_deauthorize_interface() can't complete until the device lock has been released, and the lock won't be released until the removal has finished. The mechanism provided by sysfs to prevent this kind of deadlock is to use the sysfs_break_active_protection() function, which tells sysfs not to wait for the attribute callback. Reported-and-tested by: Yue Sun <samsun1006219@gmail.com> Reported by: xingwei lee <xrivendell7@gmail.com> En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: USB: core: corrige el punto muerto en usb_deauthorize_interface() Entre las rutinas de devolución de llamada de archivos de atributos en drivers/usb/core/sysfs.c, la función interface_authorized_store() es la única que adquiere un bloqueo de dispositivo en un dispositivo antecesor: llama a usb_deauthorize_interface(), que bloquea el dispositivo USB principal de la interfaz. Esto conducirá a un punto muerto si otro proceso ya posee ese bloqueo e intenta eliminar la interfaz, ya sea mediante un cambio de configuración o porque el dispositivo se ha desconectado. Como parte del procedimiento de eliminación, device_del() espera a que se completen todas las devoluciones de llamadas de atributos sysfs en curso. • https://git.kernel.org/stable/c/310d2b4124c073a2057ef9d952d4d938e9b1dfd9 https://git.kernel.org/stable/c/8cbdd324b41528994027128207fae8100dff094f https://git.kernel.org/stable/c/12d6a5681a0a5cecc2af7860f0a1613fa7c6e947 https://git.kernel.org/stable/c/e451709573f8be904a8a72d0775bf114d7c291d9 https://git.kernel.org/stable/c/1b175bc579f46520b11ecda443bcd2ee4904f66a https://git.kernel.org/stable/c/ab062fa3dc69aea88fe62162c5881ba14b50ecc5 https://git.kernel.org/stable/c/122a06f1068bf5e39089863f4f60b1f5d4273384 https://git.kernel.org/stable/c/dbdf66250d2d33e8b27352fcb901de79f • CWE-667: Improper Locking •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2024-26933 – USB: core: Fix deadlock in port "disable" sysfs attribute
https://notcve.org/view.php?id=CVE-2024-26933
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix deadlock in port "disable" sysfs attribute The show and store callback routines for the "disable" sysfs attribute file in port.c acquire the device lock for the port's parent hub device. This can cause problems if another process has locked the hub to remove it or change its configuration: Removing the hub or changing its configuration requires the hub interface to be removed, which requires the port device to be removed, and device_del() waits until all outstanding sysfs attribute callbacks for the ports have returned. The lock can't be released until then. But the disable_show() or disable_store() routine can't return until after it has acquired the lock. The resulting deadlock can be avoided by calling sysfs_break_active_protection(). This will cause the sysfs core not to wait for the attribute's callback routine to return, allowing the removal to proceed. The disadvantage is that after making this call, there is no guarantee that the hub structure won't be deallocated at any moment. • https://git.kernel.org/stable/c/f061f43d7418cb62b8d073e221ec75d3f5b89e17 https://git.kernel.org/stable/c/9dac54f08198147f5ec0ec52fcf1bc8ac899ac05 https://git.kernel.org/stable/c/f51849833705dea5b4f9b0c8de714dd87bd6c95c https://git.kernel.org/stable/c/4facc9421117ba9d8148c73771b213887fec77f7 https://git.kernel.org/stable/c/73d1589b91f2099e5f6534a8497b7c6b527e064e https://git.kernel.org/stable/c/f4d1960764d8a70318b02f15203a1be2b2554ca1 https://access.redhat.com/security/cve/CVE-2024-26933 https://bugzilla.redhat.com/show_bug.cgi?id=2278240 • CWE-667: Improper Locking •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2024-26931 – scsi: qla2xxx: Fix command flush on cable pull
https://notcve.org/view.php?id=CVE-2024-26931
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix command flush on cable pull System crash due to command failed to flush back to SCSI layer. BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 27 PID: 793455 Comm: kworker/u130:6 Kdump: loaded Tainted: G OE --------- - - 4.18.0-372.9.1.el8.x86_64 #1 Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021 Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc] RIP: 0010:__wake_up_common+0x4c/0x190 Code: 24 10 4d 85 c9 74 0a 41 f6 01 04 0f 85 9d 00 00 00 48 8b 43 08 48 83 c3 08 4c 8d 48 e8 49 8d 41 18 48 39 c3 0f 84 f0 00 00 00 <49> 8b 41 18 89 54 24 08 31 ed 4c 8d 70 e8 45 8b 29 41 f6 c5 04 75 RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8b08d3b26320 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8 R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: __wake_up_common_lock+0x7c/0xc0 qla_nvme_ls_req+0x355/0x4c0 [qla2xxx] qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae1407ca000 from port 21:32:00:02:ac:07:ee:b8 loop_id 0x02 s_id 01:02:00 logout 1 keep 0 els_logo 0 ? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc] qla2xxx [0000:12:00.1]-207d:3: FCPort 21:32:00:02:ac:07:ee:b8 state transitioned from ONLINE to LOST - portid=010200. ? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc] qla2xxx [0000:12:00.1]-2109:3: qla2x00_schedule_rport_del 21320002ac07eeb8. rport ffff8ae598122000 roles 1 ? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc] qla2xxx [0000:12:00.1]-f084:3: qlt_free_session_done: se_sess 0000000000000000 / sess ffff8ae14801e000 from port 21:32:01:02:ad:f7:ee:b8 loop_id 0x04 s_id 01:02:01 logout 1 keep 0 els_logo 0 ? __switch_to+0x10c/0x450 ? • https://git.kernel.org/stable/c/b73377124f56d2fec154737c2f8d2e839c237d5a https://git.kernel.org/stable/c/d7a68eee87b05d4e29419e6f151aef99314970a9 https://git.kernel.org/stable/c/67b2d35853c2da25a8ca1c4190a5e96d3083c2ac https://git.kernel.org/stable/c/a859f6a8f4234b8ef62862bf7a92f1af5f8cd47a https://git.kernel.org/stable/c/09c0ac18cac206ed1218b1fe6c1a0918e5ea9211 https://git.kernel.org/stable/c/8de1584ec4fe0ebea33c273036e7e0a05e65c81d https://git.kernel.org/stable/c/8f0d32004e3a572bb77e6c11c2797c87f8c9703d https://git.kernel.org/stable/c/ec7587eef003cab15a13446d67c3adb88 •