CVE-2022-48878

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_qca: Fix driver shutdown on closed serdev

The driver shutdown callback (which sends EDL_SOC_RESET to the device over serdev) should not be invoked when HCI device is not open (e.g. if hci_dev_open_sync() failed), because the serdev and its TTY are not open either. Also skip this step if device is powered off (qca_power_shutdown()).

The shutdown callback causes use-after-free during system reboot with Qualcomm Atheros Bluetooth:

Unable to handle kernel paging request at virtual address 0072662f67726fd7 ... CPU: 6 PID: 1 Comm: systemd-shutdow Tainted: G W 6.1.0-rt5-00325-g8a5f56bcfcca #8 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: tty_driver_flush_buffer+0x4/0x30 serdev_device_write_flush+0x24/0x34 qca_serdev_shutdown+0x80/0x130 [hci_uart] device_shutdown+0x15c/0x260 kernel_restart+0x48/0xac

KASAN report:

BUG: KASAN: use-after-free in tty_driver_flush_buffer+0x1c/0x50 Read of size 8 at addr ffff16270c2e0018 by task systemd-shutdow/1

CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted 6.1.0-next-20221220-00014-gb85aaf97fb01-dirty #28 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: dump_backtrace.part.0+0xdc/0xf0 show_stack+0x18/0x30 dump_stack_lvl+0x68/0x84 print_report+0x188/0x488 kasan_report+0xa4/0xf0 __asan_load8+0x80/0xac tty_driver_flush_buffer+0x1c/0x50 ttyport_write_flush+0x34/0x44 serdev_device_write_flush+0x48/0x60 qca_serdev_shutdown+0x124/0x274 device_shutdown+0x1e8/0x350 kernel_restart+0x48/0xb0 __do_sys_reboot+0x244/0x2d0 __arm64_sys_reboot+0x54/0x70 invoke_syscall+0x60/0x190 el0_svc_common.constprop.0+0x7c/0x160 do_el0_svc+0x44/0xf0 el0_svc+0x2c/0x6c el0t_64_sync_handler+0xbc/0x140 el0t_64_sync+0x190/0x194(CVE-2022-48878)

In the Linux kernel, the following vulnerability has been resolved: rtc: cmos: Fix event handler registration ordering issue Because acpi_install_fixed_event_handler() enables the event automatically on success, it is incorrect to call it before the handler routine passed to it is ready to handle events. Unfortunately, the rtc-cmos driver does exactly the incorrect thing by calling cmos_wake_setup(), which passes rtc_handler() to acpi_install_fixed_event_handler(), before cmos_do_probe(), because rtc_handler() uses dev_get_drvdata() to get to the cmos object pointer and the driver data pointer is only populated in cmos_do_probe(). This leads to a NULL pointer dereference in rtc_handler() on boot if the RTC fixed event happens to be active at the init time. To address this issue, change the initialization ordering of the driver so that cmos_wake_setup() is always called after a successful cmos_do_probe() call. While at it, change cmos_pnp_probe() to call cmos_do_probe() after the initial if () statement used for computing the IRQ argument to be passed to cmos_do_probe() which is cleaner than calling it in each branch of that if () (local variable "irq" can be of type int, because it is passed to that function as an argument of type int). Note that commit 6492fed7d8c9 ("rtc: rtc-cmos: Do not check ACPI_FADT_LOW_POWER_S0") caused this issue to affect a larger number of systems, because previously it only affected systems with ACPI_FADT_LOW_POWER_S0 set, but it is present regardless of that commit.(CVE-2022-48953)

In the Linux kernel, the following vulnerability has been resolved: e100: Fix possible use after free in e100_xmit_prepare In e100_xmit_prepare(), if we can't map the skb, then return -ENOMEM, so e100_xmit_frame() will return NETDEV_TX_BUSY and the upper layer will resend the skb. But the skb is already freed, which will cause UAF bug when the upper layer resends the skb. Remove the harmful free.(CVE-2022-49026)

In…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: Fix driver shutdown on closed serdev The driver shutdown callback (which sends EDL_SOC_RESET to the device over serdev) should not be invoked when HCI device is not open (e.g. if hci_dev_open_sync() failed), because the serdev and its TTY are not open either. Also skip this step if device is powered off (qca_power_shutdown()). The shutdown callback causes use-after-free during system reboot with Qualcomm Atheros Bluetooth: Unable to handle kernel paging request at virtual address 0072662f67726fd7 ... CPU: 6 PID: 1 Comm: systemd-shutdow Tainted: G W 6.1.0-rt5-00325-g8a5f56bcfcca #8 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: tty_driver_flush_buffer+0x4/0x30 serdev_device_write_flush+0x24/0x34 qca_serdev_shutdown+0x80/0x130 [hci_uart] device_shutdown+0x15c/0x260 kernel_restart+0x48/0xac KASAN report: BUG: KASAN: use-after-free in tty_driver_flush_buffer+0x1c/0x50 Read of size 8 at addr ffff16270c2e0018 by task systemd-shutdow/1 CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted 6.1.0-next-20221220-00014-gb85aaf97fb01-dirty #28 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: dump_backtrace.part.0+0xdc/0xf0 show_stack+0x18/0x30 dump_stack_lvl+0x68/0x84 print_report+0x188/0x488 kasan_report+0xa4/0xf0 __asan_load8+0x80/0xac tty_driver_flush_buffer+0x1c/0x50 ttyport_write_flush+0x34/0x44 serdev_device_write_flush+0x48/0x60 qca_serdev_shutdown+0x124/0x274 device_shutdown+0x1e8/0x350 kernel_restart+0x48/0xb0 __do_sys_reboot+0x244/0x2d0 __arm64_sys_reboot+0x54/0x70 invoke_syscall+0x60/0x190 el0_svc_common.constprop.0+0x7c/0x160 do_el0_svc+0x44/0xf0 el0_svc+0x2c/0x6c el0t_64_sync_handler+0xbc/0x140 el0t_64_sync+0x190/0x194

The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-44947: Initialize beyond-EOF page contents before setting uptodate (bsc#1229454).
• CVE-2024-36936: Touch soft lockup during memory accept (bsc#1225773).
• CVE-2022-48706: Do proper cleanup if IFCVF init fails (bsc#1225524).
• CVE-2024-43883: Do not drop references before new references are gained (bsc#1229707).
• CVE-2024-41062: Sync sock recv cb and release (bsc#1228576).
• CVE-2024-43861: Fix memory leak for not ip packets (bsc#1229500).
• CVE-2023-52489: Fix race in accessing memory_section->usage (bsc#1221326).
• CVE-2024-43893: Check uartclk for zero to avoid divide by zero (bsc#1229759).
• CVE-2024-43821: Fix a possible null pointer dereference (bsc#1229315).
• CVE-2024-43900: Avoid use-after-free in load_firmware_cb() (bsc#1229756).
• CVE-2024-44938: Fix shift-out-of-bounds in dbDiscardAG (bsc#1229792).
• CVE-2024-44939: fix null ptr deref in dtInsertEntry (bsc#1229820).
• CVE-2024-41087: Fix double free on error (CVE-2024-41087,bsc#1228466).
• CVE-2024-42277: Avoid NULL deref in sprd_iommu_hw_en (bsc#1229409).
• CVE-2024-43902: Add null checker before passing variables (bsc#1229767).
• CVE-2024-43904: Add null checks for 'stream' and 'plane' before dereferencing (bsc#1229768)
• CVE-2024-43880: Put back removed metod in struct objagg_ops (bsc#1229481).
• CVE-2024-43884: Add error handling to pair_device() (bsc#1229739)
• CVE-2024-43899: Fix null pointer deref in dcn20_resource.c (bsc#1229754).
• CVE-2022-48920: Get rid of warning on transaction commit when using flushoncommit (bsc#1229658).
• CVE-2023-52906: Fix warning during failed attribute validation (bsc#1229527).
• CVE-2024-43882: Fixed ToCToU between perm check and set-uid/gid usage. (bsc#1229503)
• CVE-2024-43866: Always drain health in shutdown callback (bsc#1229495).
• CVE-2024-26812: Struct virqfd kABI workaround (bsc#1222808).
• CVE-2022-48912: Fix use-after-free in __nf_register_net_hook() (bsc#1229641)
• CVE-2024-27010: Fix mirred deadlock on device recursion (bsc#1223720).
• CVE-2022-48906: Correctly set DATA_FIN timeout when number of retransmits is large (bsc#1229605)
• CVE-2024-42155: Wipe copies of protected- and secure-keys (bsc#1228733).
• CVE-2024-42156: Wipe copies of clear-key structures on failure (bsc#1228722).
• CVE-2023-52899: Add exception protection processing for vd in axi_chan_handle_err function (bsc#1229569).
• CVE-2024-42158: Use kfree_sensitive() to fix Coccinelle warnings (bsc#1228720).
• CVE-2024-26631: Fix data-race in ipv6_mc_down / mld_ifc_work (bsc#1221630).
• CVE-2024-43873: Always initialize seqpacket_allow (bsc#1229488)
• CVE-2024-40905: Fix possible race in __fib6_drop_pcpu_from() (bsc#1227761)
• CVE-2024-39489: Fix memleak in seg6_hmac_init_algo (bsc#1227623)
• CVE-2021-47106: Fix use-after-free in nft_set_catchall_destroy() (bsc#1220962)
• CVE-2021-47517: Fix panic when interrupt coaleceing is set via ethtool (bsc#1225428).
• CVE-2024-36489: Fix missing memory barrier in tls_init (bsc#1226874)
• CVE-2024-41020: Fix fcntl/close race recovery compat path (bsc#1228427).
• CVE-2024-27079: Fix NULL domain on device release (bsc#1223742).
• CVE-2024-35897: Discard table flag update with pending basechain deletion (bsc#1224510).
• CVE-2024-27403: Restore const specifier in flow_offload_route_init() (bsc#1224415).
• CVE-2024-27011: Fix memleak in map from abort path (bsc#1223803).
• CVE-2024-43819: Reject memory region operations for ucontrol VMs (bsc#1229290 git-fixes).
• CVE-2024-26668: Reject configurations that cause integer overflow (bsc#1222335).
• CVE-2024-26835: Set dormant flag on hook register failure (bsc#1222967).
• CVE-2024-26808: Handle NETDEV_UNREGISTER for inet/ingress basechain (bsc#1222634).
• CVE-2024-27016: Validate pppoe header (bsc#1223807).
• CVE-2024-35945: Prevent nullptr exceptions on ISR (bsc#1224639).
• CVE-2023-52581: Fix memleak when more than 255…

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-44947: Initialize beyond-EOF page contents before setting uptodate (bsc#1229454).
• CVE-2024-36936: Touch soft lockup during memory accept (bsc#1225773).
• CVE-2022-48706: Do proper cleanup if IFCVF init fails (bsc#1225524).
• CVE-2024-43883: Do not drop references before new references are gained (bsc#1229707).
• CVE-2024-41062: Sync sock recv cb and release (bsc#1228576).
• CVE-2024-43861: Fix memory leak for not ip packets (bsc#1229500).
• CVE-2023-52489: Fix race in accessing memory_section->usage (bsc#1221326).
• CVE-2024-43893: Check uartclk for zero to avoid divide by zero (bsc#1229759).
• CVE-2024-43821: Fix a possible null pointer dereference (bsc#1229315).
• CVE-2024-43900: Avoid use-after-free in load_firmware_cb() (bsc#1229756).
• CVE-2024-44938: Fix shift-out-of-bounds in dbDiscardAG (bsc#1229792).
• CVE-2024-44939: Fix null ptr deref in dtInsertEntry (bsc#1229820).
• CVE-2024-41087: Fix double free on error (bsc#1228466).
• CVE-2024-42277: Avoid NULL deref in sprd_iommu_hw_en (bsc#1229409).
• CVE-2024-43902: Add null checker before passing variables (bsc#1229767).
• CVE-2024-43904: Add null checks for 'stream' and 'plane' before dereferencing (bsc#1229768)
• CVE-2024-43880: Put back removed metod in struct objagg_ops (bsc#1229481).
• CVE-2024-43884: Add error handling to pair_device() (bsc#1229739)
• CVE-2024-43899: Fix null pointer deref in dcn20_resource.c (bsc#1229754).
• CVE-2022-48920: Get rid of warning on transaction commit when using flushoncommit (bsc#1229658).
• CVE-2023-52906: Fix warning during failed attribute validation (bsc#1229527).
• CVE-2024-43882: Fixed ToCToU between perm check and set-uid/gid usage. (bsc#1229503)
• CVE-2024-43866: Always drain health in shutdown callback (bsc#1229495).
• CVE-2024-26812: struct virqfd kABI workaround (bsc#1222808).
• CVE-2022-48912: Fix use-after-free in __nf_register_net_hook() (bsc#1229641)
• CVE-2024-27010: Fix mirred deadlock on device recursion (bsc#1223720).
• CVE-2022-48906: Correctly set DATA_FIN timeout when number of retransmits is large (bsc#1229605)
• CVE-2024-42155: Wipe copies of protected- and secure-keys (bsc#1228733).
• CVE-2024-42156: Wipe copies of clear-key structures on failure (bsc#1228722).
• CVE-2023-52899: Add exception protection processing for vd in axi_chan_handle_err function (bsc#1229569).
• CVE-2024-42158: Use kfree_sensitive() to fix Coccinelle warnings (bsc#1228720).
• CVE-2024-26631: Fix data-race in ipv6_mc_down / mld_ifc_work (bsc#1221630).
• CVE-2024-43873: Always initialize seqpacket_allow (bsc#1229488)
• CVE-2024-40905: Fix possible race in __fib6_drop_pcpu_from() (bsc#1227761)
• CVE-2024-39489: Fix memleak in seg6_hmac_init_algo (bsc#1227623)
• CVE-2021-47106: Fix use-after-free in nft_set_catchall_destroy() (bsc#1220962)
• CVE-2021-47517: Fix panic when interrupt coaleceing is set via ethtool (bsc#1225428).
• CVE-2024-36489: Fix missing memory barrier in tls_init (bsc#1226874)
• CVE-2024-41020: Fix fcntl/close race recovery compat path (bsc#1228427).
• CVE-2024-27079: Fix NULL domain on device release (bsc#1223742).
• CVE-2024-35897: Discard table flag update with pending basechain deletion (bsc#1224510).
• CVE-2024-27403: Restore const specifier in flow_offload_route_init() (bsc#1224415).
• CVE-2024-27011: Fix memleak in map from abort path (bsc#1223803).
• CVE-2024-43819: Reject memory region operations for ucontrol VMs (bsc#1229290).
• CVE-2024-26668: Reject configurations that cause integer overflow (bsc#1222335).
• CVE-2024-26835: Set dormant flag on hook register failure (bsc#1222967).
• CVE-2024-26808: Handle NETDEV_UNREGISTER for inet/ingress basechain (bsc#1222634).
• CVE-2024-27016: Validate pppoe header (bsc#1223807).
• CVE-2024-35945: Prevent nullptr exceptions on ISR (bsc#1224639).
• CVE-2023-52581: Fix memleak when more than 255 elements expired (bsc#1220877).…

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-41062: bluetooth/l2cap: sync sock recv cb and release (bsc#1228576).
• CVE-2024-44947: Initialize beyond-EOF page contents before setting uptodate (bsc#1229454).
• CVE-2024-43883: Do not drop references before new references are gained (bsc#1229707).
• CVE-2024-43861: Fix memory leak for not ip packets (bsc#1229500).
• CVE-2023-52489: mm/sparsemem: fix race in accessing memory_section->usage (bsc#1221326).
• CVE-2024-44938: Fix shift-out-of-bounds in dbDiscardAG (bsc#1229792).
• CVE-2024-41087: Fix double free on error (CVE-2024-41087,bsc#1228466).
• CVE-2024-43882: Fixed ToCToU between perm check and set-uid/gid usage. (bsc#1229503)
• CVE-2022-48935: Fixed an unregister flowtable hooks on netns exit (bsc#1229619)
• CVE-2022-48912: Fix use-after-free in __nf_register_net_hook() (bsc#1229641)
• CVE-2024-42271: Fixed a use after free in iucv_sock_close(). (bsc#1229400)
• CVE-2024-42232: Fixed a race between delayed_work() and ceph_monc_stop(). (bsc#1228959)
• CVE-2024-40910: Fix refcount imbalance on inbound connections (bsc#1227832).
• CVE-2024-41009: bpf: Fix overrunning reservations in ringbuf (bsc#1228020).

The following non-security bugs were fixed:

• Bluetooth: L2CAP: Fix deadlock (git-fixes).
• mm, kmsan: fix infinite recursion due to RCU critical section (git-fixes).
• mm: prevent derefencing NULL ptr in pfn_section_valid() (git-fixes).
• nvme_core: scan namespaces asynchronously (bsc#1224105).

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-41062: Sync sock recv cb and release (bsc#1228576).
• CVE-2024-44947: Initialize beyond-EOF page contents before setting uptodate (bsc#1229454).
• CVE-2024-43883: Do not drop references before new references are gained (bsc#1229707).
• CVE-2024-43861: Fix memory leak for not ip packets (bsc#1229500).
• CVE-2023-52489: Fix race in accessing memory_section->usage (bsc#1221326).
• CVE-2024-44938: Fix shift-out-of-bounds in dbDiscardAG (bsc#1229792).
• CVE-2024-41087: Fix double free on error (CVE-2024-41087,bsc#1228466).
• CVE-2024-43882: Fixed ToCToU between perm check and set-uid/gid usage. (bsc#1229503)
• CVE-2022-48935: Fixed an unregister flowtable hooks on netns exit (bsc#1229619)
• CVE-2022-48912: Fix use-after-free in __nf_register_net_hook() (bsc#1229641)
• CVE-2024-42271: Fixed a use after free in iucv_sock_close(). (bsc#1229400)
• CVE-2024-42232: Fixed a race between delayed_work() and ceph_monc_stop(). (bsc#1228959)
• CVE-2024-40910: Fix refcount imbalance on inbound connections (bsc#1227832).
• CVE-2024-41009: Fix overrunning reservations in ringbuf (bsc#1228020).
• CVE-2024-45003: Don't evict inode under the inode lru traversing context (bsc#1230245).

The following non-security bugs were fixed:

• Bluetooth: L2CAP: Fix deadlock (git-fixes).
• mm, kmsan: fix infinite recursion due to RCU critical section (git-fixes).
• mm: prevent derefencing NULL ptr in pfn_section_valid() (git-fixes).
• Revert 'mm: prevent derefencing NULL ptr in pfn_section_valid()' (bsc#1230413).
• Revert 'mm, kmsan: fix infinite recursion due to RCU critical section' (bsc#1230413).
• Revert 'mm/sparsemem: fix race in accessing memory_section->usage' (bsc#1230413).
• nvme_core: scan namespaces asynchronously (bsc#1224105).

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-44947: Initialize beyond-EOF page contents before setting uptodate (bsc#1229454).
• CVE-2024-36936: Touch soft lockup during memory accept (bsc#1225773).
• CVE-2022-48706: Do proper cleanup if IFCVF init fails (bsc#1225524).
• CVE-2024-43883: Do not drop references before new references are gained (bsc#1229707).
• CVE-2024-41062: Sync sock recv cb and release (bsc#1228576).
• CVE-2024-43861: Fix memory leak for not ip packets (bsc#1229500).
• CVE-2024-36270: Fix reference in patches.suse/netfilter-tproxy-bail-out-if-IP-has-been-disabled-on.patch (bsc#1226798)
• CVE-2023-52489: Fix race in accessing memory_section->usage (bsc#1221326).
• CVE-2024-43893: Check uartclk for zero to avoid divide by zero (bsc#1229759).
• CVE-2024-43821: Fix a possible null pointer dereference (bsc#1229315).
• CVE-2024-43900: Avoid use-after-free in load_firmware_cb() (bsc#1229756).
• CVE-2024-44938: Fix shift-out-of-bounds in dbDiscardAG (bsc#1229792).
• CVE-2024-44939: Fix null ptr deref in dtInsertEntry (bsc#1229820).
• CVE-2024-41087: Fix double free on error (CVE-2024-41087,bsc#1228466).
• CVE-2024-42277: Avoid NULL deref in sprd_iommu_hw_en (bsc#1229409).
• CVE-2024-43902: Add null checker before passing variables (bsc#1229767).
• CVE-2024-43904: Add null checks for 'stream' and 'plane' before dereferencing (bsc#1229768)
• CVE-2024-43880: Put back removed metod in struct objagg_ops (bsc#1229481).
• CVE-2024-43884: Add error handling to pair_device() (bsc#1229739)
• CVE-2024-43899: Fix null pointer deref in dcn20_resource.c (bsc#1229754).
• CVE-2022-48920: Get rid of warning on transaction commit when using flushoncommit (bsc#1229658).
• CVE-2023-52906: Fix warning during failed attribute validation (bsc#1229527).
• CVE-2024-43882: Fixed ToCToU between perm check and set-uid/gid usage. (bsc#1229503)
• CVE-2024-43866: Always drain health in shutdown callback (bsc#1229495).
• CVE-2024-26812: Struct virqfd kABI workaround (bsc#1222808).
• CVE-2022-48912: Fix use-after-free in __nf_register_net_hook() (bsc#1229641)
• CVE-2024-27010: Fix mirred deadlock on device recursion (bsc#1223720).
• CVE-2022-48906: Correctly set DATA_FIN timeout when number of retransmits is large (bsc#1229605)
• CVE-2024-42155: Wipe copies of protected- and secure-keys (bsc#1228733).
• CVE-2024-42156: Wipe copies of clear-key structures on failure (bsc#1228722).
• CVE-2023-52899: Add exception protection processing for vd in axi_chan_handle_err function (bsc#1229569).
• CVE-2024-42158: Use kfree_sensitive() to fix Coccinelle warnings (bsc#1228720).
• CVE-2024-26631: Fix data-race in ipv6_mc_down / mld_ifc_work (bsc#1221630).
• CVE-2024-43873: Always initialize seqpacket_allow (bsc#1229488)
• CVE-2024-40905: Fix possible race in __fib6_drop_pcpu_from() (bsc#1227761)
• CVE-2024-39489: Fix memleak in seg6_hmac_init_algo (bsc#1227623)
• CVE-2021-47106: Fix use-after-free in nft_set_catchall_destroy() (bsc#1220962)
• CVE-2021-47517: Fix panic when interrupt coaleceing is set via ethtool (bsc#1225428).
• CVE-2024-36489: Fix missing memory barrier in tls_init (bsc#1226874)
• CVE-2024-41020: Fix fcntl/close race recovery compat path (bsc#1228427).
• CVE-2024-27079: Fix NULL domain on device release (bsc#1223742).
• CVE-2024-35897: Discard table flag update with pending basechain deletion (bsc#1224510).
• CVE-2024-27403: Restore const specifier in flow_offload_route_init() (bsc#1224415).
• CVE-2024-27011: Fix memleak in map from abort path (bsc#1223803).
• CVE-2024-43819: Reject memory region operations for ucontrol VMs (bsc#1229290 git-fixes).
• CVE-2024-26668: Reject configurations that cause integer overflow (bsc#1222335).
• CVE-2024-26835: Set dormant flag on hook register failure (bsc#1222967).
• CVE-2024-26808: Handle NETDEV_UNREGISTER for inet/ingress basechain (bsc#1222634).
• CVE-2024-27016: Validate pppoe header (bsc#1223807). -…