CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-36923 – fs/9p: fix uninitialized values during inode evict
https://notcve.org/view.php?id=CVE-2024-36923
In the Linux kernel, the following vulnerability has been resolved: fs/9p: fix uninitialized values during inode evict If an iget fails due to not being able to retrieve information from the server then the inode structure is only partially initialized. When the inode gets evicted, references to uninitialized structures (like fscache cookies) were being made. This patch checks for a bad_inode before doing anything other than clearing the inode from the cache. Since the inode is bad, it shouldn't have any state associated with it that needs to be written back (and there really isn't a way to complete those anyways). En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/9p: corrige valores no inicializados durante el desalojo de inodo. Si un iget falla debido a que no puede recuperar información del servidor, entonces la estructura del inodo solo se inicializa parcialmente. • https://git.kernel.org/stable/c/1b4cb6e91f19b81217ad98142ee53a1ab25893fd https://git.kernel.org/stable/c/6630036b7c228f57c7893ee0403e92c2db2cd21d •
CVSS: 4.4EPSS: 0%CPEs: 3EXPL: 0CVE-2024-36922 – wifi: iwlwifi: read txq->read_ptr under lock
https://notcve.org/view.php?id=CVE-2024-36922
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: read txq->read_ptr under lock If we read txq->read_ptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARN_ONCE() a little later. Fix that by reading txq->read_ptr under lock. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: iwlwifi: leer txq->read_ptr bajo bloqueo Si leemos txq->read_ptr sin bloqueo, podemos leer el mismo valor dos veces, luego obtener el bloqueo y reclamar desde allí a dos lugares diferentes, pero fundamentalmente reclama la misma entrada dos veces, lo que resulta en WARN_ONCE() un poco más tarde. Solucione eso leyendo txq->read_ptr bajo bloqueo. • https://git.kernel.org/stable/c/b83db8e756dec68a950ed2f056248b1704b3deaa https://git.kernel.org/stable/c/43d07103df670484cdd26f9588eabef80f69db89 https://git.kernel.org/stable/c/c2ace6300600c634553657785dfe5ea0ed688ac2 https://access.redhat.com/security/cve/CVE-2024-36922 https://bugzilla.redhat.com/show_bug.cgi?id=2284511 • CWE-413: Improper Resource Locking •
CVSS: 6.7EPSS: 0%CPEs: 3EXPL: 0CVE-2024-36921 – wifi: iwlwifi: mvm: guard against invalid STA ID on removal
https://notcve.org/view.php?id=CVE-2024-36921
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: guard against invalid STA ID on removal Guard against invalid station IDs in iwl_mvm_mld_rm_sta_id as that would result in out-of-bounds array accesses. This prevents issues should the driver get into a bad state during error handling. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: wifi: iwlwifi: mvm: proteger contra ID de STA no válido al eliminarlo Proteger contra ID de estación no válidos en iwl_mvm_mld_rm_sta_id ya que eso daría como resultado accesos a la matriz fuera de los límites. Esto evita problemas en caso de que el controlador entre en mal estado durante el manejo de errores. An out-of-bounds memory access flaw was found in the Linux kernel’s Wireless WiFi Link Next-Gen AGN driver in how a user removes it. • https://git.kernel.org/stable/c/94f80a8ec15e238b78521f20f8afaed60521a294 https://git.kernel.org/stable/c/fab21d220017daa5fd8a3d788ff25ccfecfaae2f https://git.kernel.org/stable/c/17f64517bf5c26af56b6c3566273aad6646c3c4f https://access.redhat.com/security/cve/CVE-2024-36921 https://bugzilla.redhat.com/show_bug.cgi?id=2284513 • CWE-125: Out-of-bounds Read •
CVSS: 4.4EPSS: 0%CPEs: 4EXPL: 0CVE-2024-36920 – scsi: mpi3mr: Avoid memcpy field-spanning write WARNING
https://notcve.org/view.php?id=CVE-2024-36920
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Avoid memcpy field-spanning write WARNING When the "storcli2 show" command is executed for eHBA-9600, mpi3mr driver prints this WARNING message: memcpy: detected field-spanning write (size 128) of single field "bsg_reply_buf->reply_buf" at drivers/scsi/mpi3mr/mpi3mr_app.c:1658 (size 1) WARNING: CPU: 0 PID: 12760 at drivers/scsi/mpi3mr/mpi3mr_app.c:1658 mpi3mr_bsg_request+0x6b12/0x7f10 [mpi3mr] The cause of the WARN is 128 bytes memcpy to the 1 byte size array "__u8 replay_buf[1]" in the struct mpi3mr_bsg_in_reply_buf. The array is intended to be a flexible length array, so the WARN is a false positive. To suppress the WARN, remove the constant number '1' from the array declaration and clarify that it has flexible length. Also, adjust the memory allocation size to match the change. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: mpi3mr: evitar escritura de extensión de campos de memcpy ADVERTENCIA Cuando se ejecuta el comando "storcli2 show" para eHBA-9600, el controlador mpi3mr imprime este mensaje de ADVERTENCIA: memcpy: extensión de campos detectada escriba (tamaño 128) de un solo campo "bsg_reply_buf->reply_buf" en drivers/scsi/mpi3mr/mpi3mr_app.c:1658 (tamaño 1) ADVERTENCIA: CPU: 0 PID: 12760 en drivers/scsi/mpi3mr/mpi3mr_app.c:1658 mpi3mr_bsg_request+0x6b12/0x7f10 [mpi3mr] La causa de la ADVERTENCIA es 128 bytes de memoria en la matriz de tamaño de 1 byte "__u8 replay_buf[1]" en la estructura mpi3mr_bsg_in_reply_buf. La matriz está manipulada para ser una matriz de longitud flexible, por lo que WARN es un falso positivo. • https://git.kernel.org/stable/c/5f0266044dc611563539705bff0b3e1545fbb6aa https://git.kernel.org/stable/c/f09318244c6cafd10aca741b9c01e0a2c362d43a https://git.kernel.org/stable/c/4d2772324f43cf5674ac3dbe3f74a7e656396716 https://git.kernel.org/stable/c/429846b4b6ce9853e0d803a2357bb2e55083adf0 https://access.redhat.com/security/cve/CVE-2024-36920 https://bugzilla.redhat.com/show_bug.cgi?id=2284515 •
CVSS: 4.4EPSS: 0%CPEs: 8EXPL: 0CVE-2024-36919 – scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload
https://notcve.org/view.php?id=CVE-2024-36919
In the Linux kernel, the following vulnerability has been resolved: scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload The session resources are used by FW and driver when session is offloaded, once session is uploaded these resources are not used. The lock is not required as these fields won't be used any longer. The offload and upload calls are sequential, hence lock is not required. This will suppress following BUG_ON(): [ 449.843143] ------------[ cut here ]------------ [ 449.848302] kernel BUG at mm/vmalloc.c:2727! [ 449.853072] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 449.858712] CPU: 5 PID: 1996 Comm: kworker/u24:2 Not tainted 5.14.0-118.el9.x86_64 #1 Rebooting. [ 449.867454] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.3.4 11/08/2016 [ 449.876966] Workqueue: fc_rport_eq fc_rport_work [libfc] [ 449.882910] RIP: 0010:vunmap+0x2e/0x30 [ 449.887098] Code: 00 65 8b 05 14 a2 f0 4a a9 00 ff ff 00 75 1b 55 48 89 fd e8 34 36 79 00 48 85 ed 74 0b 48 89 ef 31 f6 5d e9 14 fc ff ff 5d c3 <0f> 0b 0f 1f 44 00 00 41 57 41 56 49 89 ce 41 55 49 89 fd 41 54 41 [ 449.908054] RSP: 0018:ffffb83d878b3d68 EFLAGS: 00010206 [ 449.913887] RAX: 0000000080000201 RBX: ffff8f4355133550 RCX: 000000000d400005 [ 449.921843] RDX: 0000000000000001 RSI: 0000000000001000 RDI: ffffb83da53f5000 [ 449.929808] RBP: ffff8f4ac6675800 R08: ffffb83d878b3d30 R09: 00000000000efbdf [ 449.937774] R10: 0000000000000003 R11: ffff8f434573e000 R12: 0000000000001000 [ 449.945736] R13: 0000000000001000 R14: ffffb83da53f5000 R15: ffff8f43d4ea3ae0 [ 449.953701] FS: 0000000000000000(0000) GS:ffff8f529fc80000(0000) knlGS:0000000000000000 [ 449.962732] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 449.969138] CR2: 00007f8cf993e150 CR3: 0000000efbe10003 CR4: 00000000003706e0 [ 449.977102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 449.985065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 449.993028] Call Trace: [ 449.995756] __iommu_dma_free+0x96/0x100 [ 450.000139] bnx2fc_free_session_resc+0x67/0x240 [bnx2fc] [ 450.006171] bnx2fc_upload_session+0xce/0x100 [bnx2fc] [ 450.011910] bnx2fc_rport_event_handler+0x9f/0x240 [bnx2fc] [ 450.018136] fc_rport_work+0x103/0x5b0 [libfc] [ 450.023103] process_one_work+0x1e8/0x3c0 [ 450.027581] worker_thread+0x50/0x3b0 [ 450.031669] ? • https://git.kernel.org/stable/c/468f3e3c15076338367b0945b041105b67cf31e3 https://git.kernel.org/stable/c/acd370c1fb86b7302c1cbb354a7c1cd9953768eb https://git.kernel.org/stable/c/ad498539dda0816aadef384ec117bfea304c75c3 https://git.kernel.org/stable/c/93aa5ccc44781bdfef1bf0bc4c2c292d45251312 https://git.kernel.org/stable/c/1150606d47d711d5bfdf329a1a96ed7027085936 https://git.kernel.org/stable/c/c885ab23206b1f1ba0731ffe7c9455c6a91db256 https://git.kernel.org/stable/c/ea50941cd8c9f0b12f38b73d3b1bfeca660dd342 https://git.kernel.org/stable/c/c214ed2a4dda35b308b0b28eed804d7ae • CWE-667: Improper Locking •