Bugzilla – Bug 1220257
VUL-0: CVE-2023-52452: kernel-source,kernel-source-azure,kernel-source-rt: bpf: Fix accesses to uninit stack slots
Last modified: 2024-07-02 06:17:31 UTC
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix accesses to uninit stack slots Privileged programs are supposed to be able to read uninitialized stack memory (ever since 6715df8d5) but, before this patch, these accesses were permitted inconsistently. In particular, accesses were permitted above state->allocated_stack, but not below it. In other words, if the stack was already "large enough", the access was permitted, but otherwise the access was rejected instead of being allowed to "grow the stack". This undesired rejection was happening in two places: - in check_stack_slot_within_bounds() - in check_stack_range_initialized() This patch arranges for these accesses to be permitted. A bunch of tests that were relying on the old rejection had to change; all of them were changed to add also run unprivileged, in which case the old behavior persists. One tests couldn't be updated - global_func16 - because it can't run unprivileged for other reasons. This patch also fixes the tracking of the stack size for variable-offset reads. This second fix is bundled in the same commit as the first one because they're inter-related. Before this patch, writes to the stack using registers containing a variable offset (as opposed to registers with fixed, known values) were not properly contributing to the function's needed stack size. As a result, it was possible for a program to verify, but then to attempt to read out-of-bounds data at runtime because a too small stack had been allocated for it. Each function tracks the size of the stack it needs in bpf_subprog_info.stack_depth, which is maintained by update_stack_depth(). For regular memory accesses, check_mem_access() was calling update_state_depth() but it was passing in only the fixed part of the offset register, ignoring the variable offset. This was incorrect; the minimum possible value of that register should be used instead. This tracking is now fixed by centralizing the tracking of stack size in grow_stack_state(), and by lifting the calls to grow_stack_state() to check_stack_access_within_bounds() as suggested by Andrii. The code is now simpler and more convincingly tracks the correct maximum stack size. check_stack_range_initialized() can now rely on enough stack having been allocated for the access; this helps with the fix for the first issue. A few tests were changed to also check the stack depth computation. The one that fails without this patch is verifier_var_off:stack_write_priv_vs_unpriv. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52452 https://www.cve.org/CVERecord?id=CVE-2023-52452 https://git.kernel.org/stable/c/0954982db8283016bf38e9db2da5adf47a102e19 https://git.kernel.org/stable/c/6b4a64bafd107e521c01eec3453ce94a3fb38529 https://git.kernel.org/stable/c/fbcf372c8eda2290470268e0afb5ab5d5f5d5fde
I have a doubt of the security implication of this one. Reading uninitialized stack seems to be a feature for privileged bpf programs, but this patch seems to only make the access check more reliable.
(In reply to Thomas Leroy from comment #1) > I have a doubt of the security implication of this one. > > Reading uninitialized stack seems to be a feature for privileged bpf > programs, but this patch seems to only make the access check more reliable. I believe the mention of vulnerability lies in the second part, where unprivileged BPF program can read beyond the allocated stack. (variable offset refers to the offset applied to a pointer where exact value cannot be determined at verification time, e.g. ptr + (void *)*mem where the offset is read from memory and thus cannot be determined just by looking the BPF program instructions) > ... Before this patch, writes to the stack > using registers containing a variable offset (as opposed to registers > with fixed, known values) were not properly contributing to the > function's needed stack size. As a result, it was possible for a program > to verify, but then to attempt to read out-of-bounds data at runtime > because a too small stack had been allocated for it. Since we have CONFIG_BPF_UNPRIV_DEFAULT_OFF=y it isn't possible for unprivileged user to load such kind of BPF program, making this rather low impact. Nevertheless I think the fix is still worth backporting.
(In reply to Shung-Hsi Yu from comment #3) > Since we have CONFIG_BPF_UNPRIV_DEFAULT_OFF=y it isn't possible for > unprivileged user to load such kind of BPF program, making this rather low > impact. Nevertheless I think the fix is still worth backporting. Thanks for checking! As far as I can see, cve/linux-5.14 is missing the fix. stable and SLE15-SP6 are already fixed.
(In reply to Thomas Leroy from comment #4) > Thanks for checking! As far as I can see, cve/linux-5.14 is missing the fix. > stable and SLE15-SP6 are already fixed. Seems like SLE15-SP6 is missing the fix as well. Backported the following patches to SLE15-SP6 (f480bf8727e4): 1. 5bd90cdc65ef "bpf: Minor logging improvement" 2. a833a17aeac7 "bpf: Fix verification of indirect var-off stack access" (using git-fixes as reference) 3. 1d38a9ee8157 "bpf: Guard stack limits against 32bit overflow" (using git-fixes as reference) 4. 92e1567ee3e3 "bpf: Add some comments to stack representation" 5. 6b4a64bafd10 "bpf: Fix accesses to uninit stack slots" 6. 2929bfac006d "bpf: Minor cleanup around stack bounds" Patch 2 and 3 are independent fixes that does not have CVE reference but seems to have potential security implications, and at the same time help with the backport of patch 5, which is the actual fix for CVE-2023-52452. Patches 1, 4, and 5 are mainly pulled to better align with upstream codebase. PR to SLE15-SP5 (92d9d8401d50) contains the same set of patches, where as PR to cve/linux-5.14 (7d031251613c) omits patch 1 and 4 to keep the changes minimal. Reassigning back to security team.
(In reply to Shung-Hsi Yu from comment #5) > [snip] > Patch 2 and 3 are independent fixes that does not have CVE reference but > seems to have potential security implications, and at the same time help > with the backport of patch 5, which is the actual fix for CVE-2023-52452. > Patches 1, 4, and 5 are mainly pulled to better align with upstream codebase. ^ typo, should be 6 > [snip]
SUSE-SU-2024:0855-1: An update that solves 50 vulnerabilities, contains one feature and has 23 security fixes can now be installed. Category: security (important) Bug References: 1194869, 1206453, 1209412, 1216776, 1217927, 1218195, 1218216, 1218450, 1218527, 1218562, 1218663, 1218915, 1219126, 1219127, 1219141, 1219146, 1219295, 1219443, 1219653, 1219827, 1219835, 1219839, 1219840, 1219934, 1220003, 1220009, 1220021, 1220030, 1220106, 1220140, 1220187, 1220238, 1220240, 1220241, 1220243, 1220250, 1220251, 1220253, 1220254, 1220255, 1220257, 1220267, 1220277, 1220317, 1220325, 1220326, 1220328, 1220330, 1220335, 1220344, 1220348, 1220350, 1220364, 1220392, 1220393, 1220398, 1220409, 1220433, 1220444, 1220457, 1220459, 1220469, 1220649, 1220735, 1220736, 1220796, 1220825, 1220845, 1220848, 1220917, 1220930, 1220931, 1220933 CVE References: CVE-2019-25162, CVE-2021-46923, CVE-2021-46924, CVE-2021-46932, CVE-2021-46934, CVE-2021-47083, CVE-2022-48627, CVE-2022-48628, CVE-2023-5197, CVE-2023-52340, CVE-2023-52429, CVE-2023-52439, CVE-2023-52443, CVE-2023-52445, CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52452, CVE-2023-52456, CVE-2023-52457, CVE-2023-52462, CVE-2023-52463, CVE-2023-52464, CVE-2023-52467, CVE-2023-52475, CVE-2023-52478, CVE-2023-52482, CVE-2023-52530, CVE-2023-52531, CVE-2023-52559, CVE-2023-6270, CVE-2023-6817, CVE-2024-0607, CVE-2024-1151, CVE-2024-23849, CVE-2024-23850, CVE-2024-23851, CVE-2024-25744, CVE-2024-26585, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26593, CVE-2024-26595, CVE-2024-26598, CVE-2024-26602, CVE-2024-26603, CVE-2024-26607, CVE-2024-26622 Jira References: PED-7618 Sources used: openSUSE Leap 15.5 (src): kernel-syms-azure-5.14.21-150500.33.37.1, kernel-source-azure-5.14.21-150500.33.37.1 Public Cloud Module 15-SP5 (src): kernel-syms-azure-5.14.21-150500.33.37.1, kernel-source-azure-5.14.21-150500.33.37.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0858-1: An update that solves 39 vulnerabilities, contains one feature and has 23 security fixes can now be installed. Category: security (important) Bug References: 1194869, 1206453, 1209412, 1213456, 1216776, 1217927, 1218195, 1218216, 1218450, 1218527, 1218663, 1218915, 1219126, 1219127, 1219141, 1219146, 1219295, 1219443, 1219653, 1219827, 1219835, 1219839, 1219840, 1219934, 1220003, 1220009, 1220021, 1220030, 1220106, 1220140, 1220187, 1220238, 1220240, 1220241, 1220243, 1220250, 1220251, 1220253, 1220254, 1220255, 1220257, 1220267, 1220277, 1220317, 1220326, 1220328, 1220330, 1220335, 1220344, 1220348, 1220350, 1220364, 1220392, 1220393, 1220398, 1220409, 1220444, 1220457, 1220459, 1220649, 1220796, 1220825 CVE References: CVE-2019-25162, CVE-2021-46923, CVE-2021-46924, CVE-2021-46932, CVE-2023-28746, CVE-2023-5197, CVE-2023-52340, CVE-2023-52429, CVE-2023-52439, CVE-2023-52443, CVE-2023-52445, CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52452, CVE-2023-52456, CVE-2023-52457, CVE-2023-52463, CVE-2023-52464, CVE-2023-52475, CVE-2023-52478, CVE-2023-6817, CVE-2024-0607, CVE-2024-1151, CVE-2024-23849, CVE-2024-23850, CVE-2024-23851, CVE-2024-25744, CVE-2024-26585, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26593, CVE-2024-26595, CVE-2024-26598, CVE-2024-26602, CVE-2024-26603, CVE-2024-26622 Jira References: PED-7618 Sources used: openSUSE Leap 15.5 (src): kernel-default-base-5.14.21-150500.55.52.1.150500.6.23.1, kernel-syms-5.14.21-150500.55.52.1, kernel-source-5.14.21-150500.55.52.1, kernel-obs-qa-5.14.21-150500.55.52.1, kernel-obs-build-5.14.21-150500.55.52.1, kernel-livepatch-SLE15-SP5_Update_11-1-150500.11.3.1 SUSE Linux Enterprise Micro 5.5 (src): kernel-default-base-5.14.21-150500.55.52.1.150500.6.23.1 Basesystem Module 15-SP5 (src): kernel-default-base-5.14.21-150500.55.52.1.150500.6.23.1, kernel-source-5.14.21-150500.55.52.1 Development Tools Module 15-SP5 (src): kernel-source-5.14.21-150500.55.52.1, kernel-syms-5.14.21-150500.55.52.1, kernel-obs-build-5.14.21-150500.55.52.1 SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5_Update_11-1-150500.11.3.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0900-1: An update that solves 49 vulnerabilities and has five security fixes can now be installed. Category: security (important) Bug References: 1211515, 1213456, 1214064, 1218195, 1218216, 1218562, 1218915, 1219073, 1219126, 1219127, 1219146, 1219295, 1219633, 1219653, 1219827, 1219835, 1220009, 1220140, 1220187, 1220238, 1220240, 1220241, 1220243, 1220250, 1220251, 1220253, 1220254, 1220255, 1220257, 1220326, 1220328, 1220330, 1220335, 1220344, 1220350, 1220364, 1220398, 1220409, 1220433, 1220444, 1220457, 1220459, 1220469, 1220649, 1220735, 1220736, 1220796, 1220797, 1220825, 1220845, 1220917, 1220930, 1220931, 1220933 CVE References: CVE-2019-25162, CVE-2021-46923, CVE-2021-46924, CVE-2021-46932, CVE-2021-46934, CVE-2021-47083, CVE-2022-48627, CVE-2023-28746, CVE-2023-5197, CVE-2023-52340, CVE-2023-52429, CVE-2023-52439, CVE-2023-52443, CVE-2023-52445, CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52452, CVE-2023-52456, CVE-2023-52457, CVE-2023-52463, CVE-2023-52464, CVE-2023-52467, CVE-2023-52475, CVE-2023-52478, CVE-2023-52482, CVE-2023-52484, CVE-2023-52530, CVE-2023-52531, CVE-2023-52559, CVE-2023-6270, CVE-2023-6817, CVE-2024-0607, CVE-2024-1151, CVE-2024-23849, CVE-2024-23850, CVE-2024-23851, CVE-2024-26585, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26593, CVE-2024-26595, CVE-2024-26598, CVE-2024-26602, CVE-2024-26603, CVE-2024-26607, CVE-2024-26622 Sources used: openSUSE Leap 15.4 (src): kernel-syms-5.14.21-150400.24.111.1, kernel-source-5.14.21-150400.24.111.1, kernel-obs-build-5.14.21-150400.24.111.1, kernel-livepatch-SLE15-SP4_Update_24-1-150400.9.3.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-obs-qa-5.14.21-150400.24.111.1 openSUSE Leap Micro 5.3 (src): kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 openSUSE Leap Micro 5.4 (src): kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Linux Enterprise Micro for Rancher 5.3 (src): kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Linux Enterprise Micro 5.3 (src): kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Linux Enterprise Micro for Rancher 5.4 (src): kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Linux Enterprise Micro 5.4 (src): kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Linux Enterprise Live Patching 15-SP4 (src): kernel-livepatch-SLE15-SP4_Update_24-1-150400.9.3.1 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (src): kernel-source-5.14.21-150400.24.111.1, kernel-obs-build-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (src): kernel-source-5.14.21-150400.24.111.1, kernel-obs-build-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4 (src): kernel-source-5.14.21-150400.24.111.1, kernel-obs-build-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4 (src): kernel-source-5.14.21-150400.24.111.1, kernel-obs-build-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4 (src): kernel-source-5.14.21-150400.24.111.1, kernel-obs-build-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 SUSE Manager Proxy 4.3 (src): kernel-source-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Manager Retail Branch Server 4.3 (src): kernel-source-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 SUSE Manager Server 4.3 (src): kernel-source-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0910-1: An update that solves 39 vulnerabilities, contains one feature and has 23 security fixes can now be installed. Category: security (important) Bug References: 1194869, 1206453, 1209412, 1213456, 1216776, 1217927, 1218195, 1218216, 1218450, 1218527, 1218663, 1218915, 1219126, 1219127, 1219141, 1219146, 1219295, 1219443, 1219653, 1219827, 1219835, 1219839, 1219840, 1219934, 1220003, 1220009, 1220021, 1220030, 1220106, 1220140, 1220187, 1220238, 1220240, 1220241, 1220243, 1220250, 1220251, 1220253, 1220254, 1220255, 1220257, 1220267, 1220277, 1220317, 1220326, 1220328, 1220330, 1220335, 1220344, 1220348, 1220350, 1220364, 1220392, 1220393, 1220398, 1220409, 1220444, 1220457, 1220459, 1220649, 1220796, 1220825 CVE References: CVE-2019-25162, CVE-2021-46923, CVE-2021-46924, CVE-2021-46932, CVE-2023-28746, CVE-2023-5197, CVE-2023-52340, CVE-2023-52429, CVE-2023-52439, CVE-2023-52443, CVE-2023-52445, CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52452, CVE-2023-52456, CVE-2023-52457, CVE-2023-52463, CVE-2023-52464, CVE-2023-52475, CVE-2023-52478, CVE-2023-6817, CVE-2024-0607, CVE-2024-1151, CVE-2024-23849, CVE-2024-23850, CVE-2024-23851, CVE-2024-25744, CVE-2024-26585, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26593, CVE-2024-26595, CVE-2024-26598, CVE-2024-26602, CVE-2024-26603, CVE-2024-26622 Jira References: PED-7618 Sources used: openSUSE Leap 15.5 (src): kernel-source-rt-5.14.21-150500.13.38.1, kernel-syms-rt-5.14.21-150500.13.38.1, kernel-livepatch-SLE15-SP5-RT_Update_11-1-150500.11.3.1 SUSE Linux Enterprise Micro 5.5 (src): kernel-source-rt-5.14.21-150500.13.38.1 SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5-RT_Update_11-1-150500.11.3.1 SUSE Real Time Module 15-SP5 (src): kernel-source-rt-5.14.21-150500.13.38.1, kernel-syms-rt-5.14.21-150500.13.38.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0900-2: An update that solves 49 vulnerabilities and has five security fixes can now be installed. Category: security (important) Bug References: 1211515, 1213456, 1214064, 1218195, 1218216, 1218562, 1218915, 1219073, 1219126, 1219127, 1219146, 1219295, 1219633, 1219653, 1219827, 1219835, 1220009, 1220140, 1220187, 1220238, 1220240, 1220241, 1220243, 1220250, 1220251, 1220253, 1220254, 1220255, 1220257, 1220326, 1220328, 1220330, 1220335, 1220344, 1220350, 1220364, 1220398, 1220409, 1220433, 1220444, 1220457, 1220459, 1220469, 1220649, 1220735, 1220736, 1220796, 1220797, 1220825, 1220845, 1220917, 1220930, 1220931, 1220933 CVE References: CVE-2019-25162, CVE-2021-46923, CVE-2021-46924, CVE-2021-46932, CVE-2021-46934, CVE-2021-47083, CVE-2022-48627, CVE-2023-28746, CVE-2023-5197, CVE-2023-52340, CVE-2023-52429, CVE-2023-52439, CVE-2023-52443, CVE-2023-52445, CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52452, CVE-2023-52456, CVE-2023-52457, CVE-2023-52463, CVE-2023-52464, CVE-2023-52467, CVE-2023-52475, CVE-2023-52478, CVE-2023-52482, CVE-2023-52484, CVE-2023-52530, CVE-2023-52531, CVE-2023-52559, CVE-2023-6270, CVE-2023-6817, CVE-2024-0607, CVE-2024-1151, CVE-2024-23849, CVE-2024-23850, CVE-2024-23851, CVE-2024-26585, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26593, CVE-2024-26595, CVE-2024-26598, CVE-2024-26602, CVE-2024-26603, CVE-2024-26607, CVE-2024-26622 Sources used: SUSE Manager Proxy 4.3 (src): kernel-source-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 SUSE Manager Server 4.3 (src): kernel-source-5.14.21-150400.24.111.1, kernel-default-base-5.14.21-150400.24.111.2.150400.24.52.1, kernel-syms-5.14.21-150400.24.111.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
SUSE-SU-2024:0977-1: An update that solves 49 vulnerabilities and has five security fixes can now be installed. Category: security (important) Bug References: 1211515, 1213456, 1214064, 1218195, 1218216, 1218562, 1218915, 1219073, 1219126, 1219127, 1219146, 1219295, 1219633, 1219653, 1219827, 1219835, 1220009, 1220140, 1220187, 1220238, 1220240, 1220241, 1220243, 1220250, 1220251, 1220253, 1220254, 1220255, 1220257, 1220326, 1220328, 1220330, 1220335, 1220344, 1220350, 1220364, 1220398, 1220409, 1220433, 1220444, 1220457, 1220459, 1220469, 1220649, 1220735, 1220736, 1220796, 1220797, 1220825, 1220845, 1220917, 1220930, 1220931, 1220933 CVE References: CVE-2019-25162, CVE-2021-46923, CVE-2021-46924, CVE-2021-46932, CVE-2021-46934, CVE-2021-47083, CVE-2022-48627, CVE-2023-28746, CVE-2023-5197, CVE-2023-52340, CVE-2023-52429, CVE-2023-52439, CVE-2023-52443, CVE-2023-52445, CVE-2023-52447, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52452, CVE-2023-52456, CVE-2023-52457, CVE-2023-52463, CVE-2023-52464, CVE-2023-52467, CVE-2023-52475, CVE-2023-52478, CVE-2023-52482, CVE-2023-52484, CVE-2023-52530, CVE-2023-52531, CVE-2023-52559, CVE-2023-6270, CVE-2023-6817, CVE-2024-0607, CVE-2024-1151, CVE-2024-23849, CVE-2024-23850, CVE-2024-23851, CVE-2024-26585, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26593, CVE-2024-26595, CVE-2024-26598, CVE-2024-26602, CVE-2024-26603, CVE-2024-26607, CVE-2024-26622 Maintenance Incident: [SUSE:Maintenance:33016](https://smelt.suse.de/incident/33016/) Sources used: SUSE Linux Enterprise Micro for Rancher 5.3 (src): kernel-source-rt-5.14.21-150400.15.71.1 SUSE Linux Enterprise Micro 5.3 (src): kernel-source-rt-5.14.21-150400.15.71.1 SUSE Linux Enterprise Micro for Rancher 5.4 (src): kernel-source-rt-5.14.21-150400.15.71.1 SUSE Linux Enterprise Micro 5.4 (src): kernel-source-rt-5.14.21-150400.15.71.1 SUSE Linux Enterprise Live Patching 15-SP4 (src): kernel-livepatch-SLE15-SP4-RT_Update_19-1-150400.1.3.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.