| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
rds: filter RDS_INFO_* getsockopt by caller's netns
The RDS_INFO_* family of getsockopt(2) options reads several
file-scope global lists that are not per-netns:
rds_sock_info / rds6_sock_info,
rds_sock_inc_info / rds6_sock_inc_info -> rds_sock_list
rds_tcp_tc_info / rds6_tcp_tc_info -> rds_tcp_tc_list
rds_conn_info / rds6_conn_info,
rds_conn_message_info_cmn (for the *_SEND_MESSAGES and
*_RETRANS_MESSAGES variants),
rds_for_each_conn_info (for RDS_INFO_IB_CONNECTIONS)
-> rds_conn_hash[]
The handlers do not filter by the caller's network namespace.
rds_info_getsockopt() has no netns or capable() check, and
rds_create() has no capable() check, so AF_RDS is reachable from
an unprivileged user namespace. As a result, an unprivileged
caller in a fresh user_ns plus netns can read the bound address
and sock inode of every RDS socket on the host, the peer address
of incoming messages on every RDS socket on the host, the peer
address and TCP sequence numbers of every rds-tcp connection on
the host, and the peer address and RDS sequence numbers of every
RDS connection on the host.
The rds-tcp transport is reachable from a non-initial netns (see
rds_set_transport()), so a one-shot init_net gate at
rds_info_getsockopt() would deny legitimate per-netns visibility
to rds-tcp callers. Instead, filter at each handler by comparing
the netns of the caller's socket to the netns of the list entry,
or to rds_conn_net(conn) for connection paths. Only copy entries
whose netns matches the caller. Counters (RDS_INFO_COUNTERS) are
aggregate statistics and remain global.
Reproducer (KASAN VM, rds and rds_tcp loaded): an AF_RDS socket
binds 127.0.0.1:4242 in init_net as root. A child process enters
a fresh user_ns plus netns and opens AF_RDS there, then calls
getsockopt(SOL_RDS, RDS_INFO_SOCKETS). Before this change, the
child sees the init_net socket. After this change, the child
sees zero entries.
Drop the rds_sock_count, rds_tcp_tc_count, and rds6_tcp_tc_count
globals. v2 used them for the size precheck and lens->nr; v3
replaced the precheck with a per-ns count from a first pass over
the list, so the globals have no remaining readers. The matching
increments and decrements in rds_create()/rds_destroy_sock() and
rds_tcp_set_callbacks()/rds_tcp_restore_callbacks() go away with
them. Reported by the kernel test robot under clang W=1. |
| In the Linux kernel, the following vulnerability has been resolved:
thermal/drivers/tegra/soctherma: Switch to devm cooling device registration
Use devm_thermal_of_cooling_device_register() to simplify resource
management and avoid manual cleanup in error paths.
As a side effect this change has the benefit of solving an existing
issue. Before, the function tegra_soctherm_remove() only called
debugfs_remove_recursive() and never called thermal_cooling_device_unregister()
for any of the cooling devices registered here.
After the driver removal, the thermal framework's cdev list would
still hold references to thermal_cooling_device objects whose devdata
pointer (ts) pointed to memory already freed by the platform device's
devm cleanup.
With this change, the cooling device is unregistered when the driver
is removed, thus fixing the issue above. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mld: purge async notifications upon nic error
This fixes a kernel panic in reconfig failure:
1. we have a BSS connection
2. we have a NAN connection
3. FW error occurs
4. reconfig restores the BSS connection
5. however, restoring the NAN connection fails due to a FW error.
6. erroneously, ieee80211_handle_reconfig_failure is called and marks all
interfaces as not-in-driver (will be fixed in a different patch).
7. mac80211 frees the links of the BSS connection but doesn't tell the
driver about that, as it thinks that this vif is not in the driver.
8. in ieee80211_stop_device, *ALL* wiphy works are getting flushed
(erroneously?)
9. Therefore, async_handlers_wk is being executed, processing the
statistics notification that was received after we restored the BSS
connection.
10. the notification handler dereferences fw_id_to_bss_conf[id], which is
now a dangling pointer, as mac80211 already freed this link in (7).
11. On the first access to one of the links fields, we panic.
While this can and should be fixed by removing the call to
ieee80211_handle_reconfig_failure in (6), it is also not a good idea to
carry and maybe handle notifications from a dead FW.
We do purge the notifications when we stop the FW, but in reconfig
failure we stop the FW too late, after the notifications are processed.
In addition, async_handlers_wk can always be scheduled before the
reconfig work.
Purge the notifications immediately when transport notifies about a nic
error. |
| In the Linux kernel, the following vulnerability has been resolved:
powercap: intel_rapl: Fix memory leak in rapl_add_package_cpuslocked()
When topology_physical_package_id()/topology_logical_die_id() returns
a negative value, rapl_add_package_cpuslocked() returns ERR_PTR(-EINVAL)
directly without freeing the rapl_package structure that was just
allocated by kzalloc_obj(), leaking memory on every failed package
addition.
Use the existing err_free_package label so that the allocation is
released on the error path. |
| In the Linux kernel, the following vulnerability has been resolved:
ipv6: addrconf: fix temp address generation after prefix deprecation
When a router temporarily deprecates an IPv6 prefix (either by sending a
Router Advertisement with Preferred Lifetime = 0 or by letting the
lifetime expire) and later restores it, the kernel permanently loses its
ability to generate temporary privacy addresses (RFC 8981) for that
prefix.
This happens because the address worker attempts to generate a
replacement temporary address when the current one nears expiration. As
the base prefix is deprecated already, the generation fails after
marking the temporary address as already having spawned a replacement
(ifp->regen_count++).
When the router eventually restores the prefix, the temporary address
becomes active again. However, once it naturally expires, the address
worker sees this temporary address already tried to generate one and
skips the regeneration.
Fix the issue by resetting the regen_count check of the latest temp
address generated for the prefix updated by the incoming RA. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Fix condition check in acpi_ps_parse_loop()
Fix condition check for AML_ELSE_OP in acpi_ps_parse_loop() to prevent
out-of-bounds access. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
Fix use-after-free issue in acpi_ds_terminate_control_method() by
clearing references to method locals and arguments. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: add boundary checks in acpi_ps_get_next_field()
Add boundary checks in acpi_ps_get_next_field() to prevent out-of-bounds
access. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: validate byte_count in acpi_ps_get_next_package_length()
Validate package length reading in acpi_ps_get_next_package_length(). |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Prevent adding invalid references
Prevent adding references for local, argument, and debug objects
in acpi_ut_copy_simple_object(). |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
Add overflow check for Index + Length to prevent integer overflow
when calculating the truncation length. This prevents negative
size parameter being passed to memcpy(). |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: validate handler object type in two places
ACPICA: validate handler object type in acpi_ev_has_default_handler()
and acpi_ev_find_region_handler(). |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Add package limit checks in parser functions
Add package limit checks in parser functions to prevent out-of-bounds
access. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Add validation for node in acpi_ns_build_normalized_path()
Add validation for node in acpi_ns_build_normalized_path()
to prevent use-after-free vulnerabilities. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Enhance OEM ID and Table ID validation in acpi_ex_load_table_op()
Enhance OEM ID and Table ID validation in acpi_ex_load_table_op() to
prevent buffer overflows. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Fix NULL pointer dereference in acpi_ns_custom_package()
acpi_ns_custom_package() unconditionally dereferences the first element
of the package to read the _BIX version number, without checking for
NULL:
if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER)
When firmware returns a _BIX package whose first element is an
unresolvable reference, ACPICA evaluates that entry to NULL.
acpi_ns_remove_null_elements() does not strip NULL entries for
ACPI_PTYPE_CUSTOM packages (fixed-position format would break if
elements were shifted), so acpi_ns_custom_package() sees the NULL
and causes a crash.
Add a NULL check for the first element (version field) before
dereferencing it. The caller then receives AE_AML_OPERAND_TYPE
instead of crashing. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Enhance buffer validation in acpi_ut_walk_aml_resources()
Enhance buffer validation in acpi_ut_walk_aml_resources() to prevent
buffer overflows. |
| In the Linux kernel, the following vulnerability has been resolved:
ACPICA: add boundary checks in two places
Add boundary checks in acpi_ps_get_next_namestring() and
acpi_ps_peek_opcode() to prevent out-of-bounds access. |
| In the Linux kernel, the following vulnerability has been resolved:
perf/ftrace: Fix WARNING in __unregister_ftrace_function
perf_ftrace_function_unregister() unconditionally calls
unregister_ftrace_function() without checking whether the ftrace_ops
was ever successfully registered. This triggers a WARN_ON in
__unregister_ftrace_function() when the ops doesn't have
FTRACE_OPS_FL_ENABLED set.
This can happen during perf_event_alloc() error cleanup when
perf_trace_destroy() is called via __free_event() on an event whose
ftrace_ops registration failed or was already torn down by
perf_try_init_event()'s err_destroy path.
The call path is:
perf_event_alloc() error cleanup
-> __free_event()
-> event->destroy() [tp_perf_event_destroy]
-> perf_trace_destroy()
-> perf_trace_event_close()
-> TRACE_REG_PERF_CLOSE
-> perf_ftrace_function_unregister()
-> unregister_ftrace_function()
-> __unregister_ftrace_function()
-> WARN_ON(!(ops->flags & FTRACE_OPS_FL_ENABLED))
Fix this by checking FTRACE_OPS_FL_ENABLED before attempting to
unregister. If the ops is not enabled, just free the filter and
return success. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
In certain cases, hardware might provide packets with a
length greater than the maximum native Wi-Fi header length.
This can lead to accessing and modifying fields in the header
within the ath11k_dp_rx_h_undecap_nwifi() function for the
DP_RX_DECAP_TYPE_NATIVE_WIFI decap type and
potentially result in invalid data access and memory corruption.
Kernel stack is corrupted in: ath11k_dp_rx_h_undecap+0x6b0/0x6b0 [ath11k]
Call trace:
ath11k_dp_rx_h_mpdu+0x0/0x2e8 [ath11k]
ath11k_dp_rx_h_mpdu+0x1e0/0x2e8 [ath11k]
ath11k_dp_rx_wbm_err+0x1e0/0x450 [ath11k]
ath11k_dp_rx_process_wbm_err+0x2fc/0x460 [ath11k]
ath11k_dp_service_srng+0x2e0/0x348 [ath11k]
Add a sanity check before processing the SKB to prevent invalid
data access in the undecap native Wi-Fi function for the
DP_RX_DECAP_TYPE_NATIVE_WIFI decap type.
This adapted from the discussion/patch of the ath12k driver [1].
Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04685-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1 |
