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CVSS: -EPSS: 0%CPEs: 4EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter") En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: fddi: corrige UAF en fza_probe fp son datos privados de netdev y no se pueden usar después de la llamada a free_netdev(). Usar fp después de free_netdev() puede causar un error UAF. Solucionadlo moviendo free_netdev() después del mensaje de error. • https://git.kernel.org/stable/c/61414f5ec9834df8aa4f55c90de16b71a3d6ca8d https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47 https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9 •

CVSS: -EPSS: 0%CPEs: 6EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: dma-buf/sync_file: Don't leak fences on merge failure Each add_fence() call does a dma_fence_get() on the relevant fence. In the error path, we weren't calling dma_fence_put() so all those fences got leaked. Also, in the krealloc_array failure case, we weren't freeing the fences array. Instead, ensure that i and fences are always zero-initialized and dma_fence_put() all the fences and kfree(fences) on every error path. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-buf/sync_file: no filtrar barreras en caso de falla de fusión. • https://git.kernel.org/stable/c/a02b9dc90d844cc7df7b63264e7920cc425052d9 https://git.kernel.org/stable/c/19f51c2529339280d2c8c6427cd3e21ddf1ac3f8 https://git.kernel.org/stable/c/e0355a0ad31a1d677b2a4514206de4902bd550e8 https://git.kernel.org/stable/c/41f45e91c92c8480242ea448d54e28c753b13902 https://git.kernel.org/stable/c/0d514185ae792d3a1903c8e1a83899aa996705ce https://git.kernel.org/stable/c/19edcd97727aae9362444a859a24d99a8730cb27 https://git.kernel.org/stable/c/ffe000217c5068c5da07ccb1c0f8cce7ad767435 •

CVSS: -EPSS: 0%CPEs: 4EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: igc: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igc_poll() runs while the controller is being reset this can lead to the driver try to free a skb that was already freed. Log message: [ 101.525242] refcount_t: underflow; use-after-free. [ 101.525251] WARNING: CPU: 1 PID: 646 at lib/refcount.c:28 refcount_warn_saturate+0xab/0xf0 [ 101.525259] Modules linked in: sch_etf(E) sch_mqprio(E) rfkill(E) intel_rapl_msr(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) binfmt_misc(E) kvm_intel(E) kvm(E) irqbypass(E) crc32_pclmul(E) ghash_clmulni_intel(E) aesni_intel(E) mei_wdt(E) libaes(E) crypto_simd(E) cryptd(E) glue_helper(E) snd_hda_codec_hdmi(E) rapl(E) intel_cstate(E) snd_hda_intel(E) snd_intel_dspcfg(E) sg(E) soundwire_intel(E) intel_uncore(E) at24(E) soundwire_generic_allocation(E) iTCO_wdt(E) soundwire_cadence(E) intel_pmc_bxt(E) serio_raw(E) snd_hda_codec(E) iTCO_vendor_support(E) watchdog(E) snd_hda_core(E) snd_hwdep(E) snd_soc_core(E) snd_compress(E) snd_pcsp(E) soundwire_bus(E) snd_pcm(E) evdev(E) snd_timer(E) mei_me(E) snd(E) soundcore(E) mei(E) configfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc32c_generic(E) crc16(E) mbcache(E) jbd2(E) sd_mod(E) t10_pi(E) crc_t10dif(E) crct10dif_generic(E) i915(E) ahci(E) libahci(E) ehci_pci(E) igb(E) xhci_pci(E) ehci_hcd(E) [ 101.525303] drm_kms_helper(E) dca(E) xhci_hcd(E) libata(E) crct10dif_pclmul(E) cec(E) crct10dif_common(E) tsn(E) igc(E) e1000e(E) ptp(E) i2c_i801(E) crc32c_intel(E) psmouse(E) i2c_algo_bit(E) i2c_smbus(E) scsi_mod(E) lpc_ich(E) pps_core(E) usbcore(E) drm(E) button(E) video(E) [ 101.525318] CPU: 1 PID: 646 Comm: irq/37-enp7s0-T Tainted: G E 5.10.30-rt37-tsn1-rt-ipipe #ipipe [ 101.525320] Hardware name: SIEMENS AG SIMATIC IPC427D/A5E31233588, BIOS V17.02.09 03/31/2017 [ 101.525322] RIP: 0010:refcount_warn_saturate+0xab/0xf0 [ 101.525325] Code: 05 31 48 44 01 01 e8 f0 c6 42 00 0f 0b c3 80 3d 1f 48 44 01 00 75 90 48 c7 c7 78 a8 f3 a6 c6 05 0f 48 44 01 01 e8 d1 c6 42 00 <0f> 0b c3 80 3d fe 47 44 01 00 0f 85 6d ff ff ff 48 c7 c7 d0 a8 f3 [ 101.525327] RSP: 0018:ffffbdedc0917cb8 EFLAGS: 00010286 [ 101.525329] RAX: 0000000000000000 RBX: ffff98fd6becbf40 RCX: 0000000000000001 [ 101.525330] RDX: 0000000000000001 RSI: ffffffffa6f2700c RDI: 00000000ffffffff [ 101.525332] RBP: ffff98fd6becc14c R08: ffffffffa7463d00 R09: ffffbdedc0917c50 [ 101.525333] R10: ffffffffa74c3578 R11: 0000000000000034 R12: 00000000ffffff00 [ 101.525335] R13: ffff98fd6b0b1000 R14: 0000000000000039 R15: ffff98fd6be35c40 [ 101.525337] FS: 0000000000000000(0000) GS:ffff98fd6e240000(0000) knlGS:0000000000000000 [ 101.525339] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.525341] CR2: 00007f34135a3a70 CR3: 0000000150210003 CR4: 00000000001706e0 [ 101.525343] Call Trace: [ 101.525346] sock_wfree+0x9c/0xa0 [ 101.525353] unix_destruct_scm+0x7b/0xa0 [ 101.525358] skb_release_head_state+0x40/0x90 [ 101.525362] skb_release_all+0xe/0x30 [ 101.525364] napi_consume_skb+0x57/0x160 [ 101.525367] igc_poll+0xb7/0xc80 [igc] [ 101.525376] ? sched_clock+0x5/0x10 [ 101.525381] ? sched_clock_cpu+0xe/0x100 [ 101.525385] net_rx_action+0x14c/0x410 [ 101.525388] __do_softirq+0xe9/0x2f4 [ 101.525391] __local_bh_enable_ip+0xe3/0x110 [ 101.525395] ? irq_finalize_oneshot.part.47+0xe0/0xe0 [ 101.525398] irq_forced_thread_fn+0x6a/0x80 [ 101.525401] irq_thread+0xe8/0x180 [ 101.525403] ? • https://git.kernel.org/stable/c/13b5b7fd6a4a96dffe604f25e7b64cfbd9520924 https://git.kernel.org/stable/c/a9508e0edfe369ac95d0825bcdca976436ce780f https://git.kernel.org/stable/c/e15f629036bac005fc758b4ad17896cf2312add4 https://git.kernel.org/stable/c/ea5e36b7367ea0a36ef73a163768f16d2977bd83 https://git.kernel.org/stable/c/56ea7ed103b46970e171eb1c95916f393d64eeff •

CVSS: -EPSS: 0%CPEs: 6EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: igb: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igb_poll() runs while the controller is reset this can lead to the driver try to free a skb that was already freed. (The crash is harder to reproduce with the igb driver, but the same potential problem exists as the code is identical to igc) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igb: corrige el error de use after free durante el reinicio. Limpia el siguiente descriptor a observar (next_to_watch) al limpiar el anillo TX. De lo contrario, se pueden producir accesos a la memoria no válidos. Si igb_poll() se ejecuta mientras se reinicia el controlador, esto puede hacer que el controlador intente liberar un skb que ya estaba liberado. • https://git.kernel.org/stable/c/7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 https://git.kernel.org/stable/c/d7367f781e5a9ca5df9082b15b272b55e76931f8 https://git.kernel.org/stable/c/d3ccb18ed5ac3283c7b31ecc685b499e580d5492 https://git.kernel.org/stable/c/88e0720133d42d34851c8721cf5f289a50a8710f https://git.kernel.org/stable/c/f153664d8e70c11d0371341613651e1130e20240 https://git.kernel.org/stable/c/8e24c12f2ff6d32fd9f057382f08e748ec97194c https://git.kernel.org/stable/c/7b292608db23ccbbfbfa50cdb155d01725d7a52e •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

In the Linux kernel, the following vulnerability has been resolved: net: fix uninit-value in caif_seqpkt_sendmsg When nr_segs equal to zero in iovec_from_user, the object msg->msg_iter.iov is uninit stack memory in caif_seqpkt_sendmsg which is defined in ___sys_sendmsg. So we cann't just judge msg->msg_iter.iov->base directlly. We can use nr_segs to judge msg in caif_seqpkt_sendmsg whether has data buffers. ===================================================== BUG: KMSAN: uninit-value in caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x220 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x12b6/0x1350 net/socket.c:2343 ___sys_sendmsg net/socket.c:2397 [inline] __sys_sendmmsg+0x808/0xc90 net/socket.c:2480 __compat_sys_sendmmsg net/compat.c:656 [inline] En el kernel de Linux, se resolvió la siguiente vulnerabilidad: net: corrige el valor uninit en caif_seqpkt_sendmsg. Cuando nr_segs es igual a cero en iovec_from_user, el objeto msg-&gt;msg_iter.iov es la memoria de pila uninit en caif_seqpkt_sendmsg que está definida en ___sys_sendmsg. Entonces no podemos simplemente juzgar msg-&gt;msg_iter.iov-&gt;base directamente. • https://git.kernel.org/stable/c/bece7b2398d073d11b2e352405a3ecd3a1e39c60 https://git.kernel.org/stable/c/d9d646acad2c3590e189bb5d5c86ab8bd8a2dfc3 https://git.kernel.org/stable/c/5c6d8e2f7187b8e45a18c27acb7a3885f03ee3db https://git.kernel.org/stable/c/ffe31dd70b70a40cd6b21b78c1713a23e021843a https://git.kernel.org/stable/c/452c3ed7bf63721b07bc2238ed1261bb26027e85 https://git.kernel.org/stable/c/9413c0abb57f70a953b1116318d6aa478013c35d https://git.kernel.org/stable/c/1582a02fecffcee306663035a295e28e1c4aaaff https://git.kernel.org/stable/c/d4c7797ab1517515f0d08b3bc1c6b4888 •